SONAR-249 rename the SNAPSHOTS.VARIATION_xxx columns + add SNAPSHOTS.PERIODx_DATE

25 files changed, 175 insertions, 175 deletions

diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/api/PurgeUtilsTest/purgeSnapshots-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/api/PurgeUtilsTest/purgeSnapshots-result.xml
index 8016617f8b9..404feaf2e4a 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/api/PurgeUtilsTest/purgeSnapshots-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/api/PurgeUtilsTest/purgeSnapshots-result.xml
@@ -30,23 +30,23 @@
             enabled="true" language="java" copy_resource_id="[null]"/>
 
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
              <!--project_id="3"-->
              <!--parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
              <!--path="[null]"/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
              <!--project_id="4"-->
              <!--parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
              <!--path="[null]"/>-->
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/api/PurgeUtilsTest/purgeSnapshots.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/api/PurgeUtilsTest/purgeSnapshots.xml
index ec7e6ebc3e9..d818ec94c04 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/api/PurgeUtilsTest/purgeSnapshots.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/api/PurgeUtilsTest/purgeSnapshots.xml
@@ -30,23 +30,23 @@
             enabled="true" language="java" copy_resource_id="[null]"/>
 
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/period/DefaultPeriodCleanerTest/dbContent-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/period/DefaultPeriodCleanerTest/dbContent-result.xml
index 8b438b81120..6ec77c2f90b 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/period/DefaultPeriodCleanerTest/dbContent-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/period/DefaultPeriodCleanerTest/dbContent-result.xml
@@ -17,7 +17,7 @@
 
   <!-- snapshots older than the dateToStartDeletingAllSnapshots-->
   <!-- keep this one because version event -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2009-11-02 13:58:00.00" version="0.9"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2009-11-02 13:58:00.00" version="0.9"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
@@ -28,17 +28,17 @@
                     RULE_ID="1"
                     text_value="[null]" tendency="[null]" measure_date="[null]" project_id="[null]"
                     alert_status="[null]" description="[null]"/>
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2010-01-01 13:58:00.00"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="PRJ" qualifier="TRK" created_at="2010-01-01 13:58:00.00"-->
              <!--version="1.0-SNAPSHOT"-->
              <!--project_id="1"-->
              <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"-->
              <!--path="[null]"/>-->
   <!--<project_measures ID="2" VALUE="10.0" METRIC_ID="1" SNAPSHOT_ID="2"/>-->
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="1" id="10" scope="DIR" qualifier="PAC" created_at="2010-01-01 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="1" id="10" scope="DIR" qualifier="PAC" created_at="2010-01-01 13:58:00.00" version="[null]"-->
              <!--project_id="2"-->
              <!--parent_snapshot_id="2" root_project_id="1" root_snapshot_id="2" status="P" islast="false"-->
              <!--path="1"/>-->
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="2" id="20" scope="FIL" qualifier="CLA" created_at="2010-01-01 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="2" id="20" scope="FIL" qualifier="CLA" created_at="2010-01-01 13:58:00.00" version="[null]"-->
              <!--project_id="3"-->
              <!--parent_snapshot_id="10" root_project_id="1" root_snapshot_id="2" status="P" islast="false"-->
              <!--path="1.10"/>-->
@@ -49,32 +49,32 @@
 
   <!-- snapshots between dateToStartKeepingOneSnapshotByMonth and dateToStartDeletingAllSnapshots-->
   <!-- single snapshot on this month (except version events) -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="100" scope="PRJ" qualifier="TRK" created_at="2010-03-01 13:58:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="100" scope="PRJ" qualifier="TRK" created_at="2010-03-01 13:58:00.00"
              version="1.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="110" scope="PRJ" qualifier="TRK" created_at="2010-03-02 13:58:00.00"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="110" scope="PRJ" qualifier="TRK" created_at="2010-03-02 13:58:00.00"-->
              <!--version="1.0-SNAPSHOT"-->
              <!--project_id="1"-->
              <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"-->
              <!--path="[null]"/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="120" scope="PRJ" qualifier="TRK" created_at="2010-03-03 13:58:00.00"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="120" scope="PRJ" qualifier="TRK" created_at="2010-03-03 13:58:00.00"-->
              <!--version="1.0-SNAPSHOT"-->
              <!--project_id="1"-->
              <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"-->
              <!--path="[null]"/>-->
 
   <!-- this one has a version event -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="130" scope="PRJ" qualifier="TRK" created_at="2010-04-01 13:58:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="130" scope="PRJ" qualifier="TRK" created_at="2010-04-01 13:58:00.00"
              version="1.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
    <!-- keep this one -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="140" scope="PRJ" qualifier="TRK" created_at="2010-04-15 13:58:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="140" scope="PRJ" qualifier="TRK" created_at="2010-04-15 13:58:00.00"
              version="1.1-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
@@ -85,11 +85,11 @@
 
 
   <!-- snapshots whose qualifier = LIB must not be deleted -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="150" scope="PRJ" qualifier="LIB" created_at="2010-04-22 13:58:00.00" version="0.1"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="150" scope="PRJ" qualifier="LIB" created_at="2010-04-22 13:58:00.00" version="0.1"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="160" scope="PRJ" qualifier="LIB" created_at="2010-04-23 13:58:00.00" version="0.2"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="160" scope="PRJ" qualifier="LIB" created_at="2010-04-23 13:58:00.00" version="0.2"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
@@ -101,26 +101,26 @@
 
   <!-- snapshots between dateToStartKeepingOneSnapshotByWeek and dateToStartKeepingOneSnapshotByMonth-->
   <!-- keep this one -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="500" scope="PRJ" qualifier="TRK" created_at="2010-08-17 13:58:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="500" scope="PRJ" qualifier="TRK" created_at="2010-08-17 13:58:00.00"
              version="1.1-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="510" scope="PRJ" qualifier="TRK" created_at="2010-08-18 13:58:00.00"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="510" scope="PRJ" qualifier="TRK" created_at="2010-08-18 13:58:00.00"-->
              <!--version="1.1-SNAPSHOT"-->
              <!--project_id="1"-->
              <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"-->
              <!--path="[null]"/>-->
   
   <!-- this one has a version event -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="520" scope="PRJ" qualifier="TRK" created_at="2010-08-25 13:58:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="520" scope="PRJ" qualifier="TRK" created_at="2010-08-25 13:58:00.00"
              version="1.1-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
   <!-- this one has a version event -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="530" scope="PRJ" qualifier="TRK" created_at="2010-08-26 13:58:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="530" scope="PRJ" qualifier="TRK" created_at="2010-08-26 13:58:00.00"
              version="1.2-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
@@ -132,18 +132,18 @@
     snapshots before dateToStartKeepingOneSnapshotByWeek : nothing is currently purged
     It will be improved later by keeping only one daily snapshot : snapshot 1010 should be removed -->
   -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1000" scope="PRJ" qualifier="TRK" created_at="2010-11-02 13:58:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1000" scope="PRJ" qualifier="TRK" created_at="2010-11-02 13:58:00.00"
              version="3.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1010" scope="PRJ" qualifier="TRK" created_at="2010-11-03 13:58:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1010" scope="PRJ" qualifier="TRK" created_at="2010-11-03 13:58:00.00"
              version="3.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
   <!-- same day than 1010 -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1020" scope="PRJ" qualifier="TRK" created_at="2010-11-03 20:26:00.00"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1020" scope="PRJ" qualifier="TRK" created_at="2010-11-03 20:26:00.00"
              version="3.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/period/DefaultPeriodCleanerTest/dbContent.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/period/DefaultPeriodCleanerTest/dbContent.xml
index 05327e879f4..3becebd619a 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/period/DefaultPeriodCleanerTest/dbContent.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/period/DefaultPeriodCleanerTest/dbContent.xml
@@ -26,7 +26,7 @@ to ensure that unit tests pass on any locale.
   <snapshots depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2009-11-02 13:58:00.00" version="0.9"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <project_measures characteristic_id="[null]" url="[null]" variation_value_1="[null]" variation_value_2="[null]"
                     variation_value_3="[null]" variation_value_4="[null]" variation_value_5="[null]"
                     rule_priority="[null]"
@@ -38,16 +38,16 @@ to ensure that unit tests pass on any locale.
              version="1.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <project_measures ID="2" VALUE="10.0" METRIC_ID="1" SNAPSHOT_ID="2"/>
   <snapshots depth="1" id="10" scope="DIR" qualifier="PAC" created_at="2010-01-01 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="1" root_snapshot_id="2" status="P" islast="false"
-             path="1" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="1" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="2" id="20" scope="FIL" qualifier="CLA" created_at="2010-01-01 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="10" root_project_id="1" root_snapshot_id="2" status="P" islast="false"
-             path="1.10" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="1.10" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
 
 
@@ -57,27 +57,27 @@ to ensure that unit tests pass on any locale.
              version="1.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="110" scope="PRJ" qualifier="TRK" created_at="2010-03-02 13:58:00.00"
              version="1.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="120" scope="PRJ" qualifier="TRK" created_at="2010-03-03 13:58:00.00"
              version="1.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="130" scope="PRJ" qualifier="TRK" created_at="2010-04-01 13:58:00.00"
              version="1.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="140" scope="PRJ" qualifier="TRK" created_at="2010-04-15 13:58:00.00"
              version="1.1-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
 
 
@@ -86,51 +86,51 @@ to ensure that unit tests pass on any locale.
   <snapshots depth="[null]" id="150" scope="PRJ" qualifier="LIB" created_at="2010-04-22 13:58:00.00" version="0.1"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="160" scope="PRJ" qualifier="LIB" created_at="2010-04-23 13:58:00.00" version="0.2"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
   <!-- snapshots between dateToStartKeepingOneSnapshotByWeek and dateToStartKeepingOneSnapshotByMonth-->
   <snapshots depth="[null]" id="500" scope="PRJ" qualifier="TRK" created_at="2010-08-17 13:58:00.00"
              version="1.1-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="510" scope="PRJ" qualifier="TRK" created_at="2010-08-19 13:58:00.00"
              version="1.1-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="520" scope="PRJ" qualifier="TRK" created_at="2010-08-25 13:58:00.00"
              version="1.1-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="530" scope="PRJ" qualifier="TRK" created_at="2010-08-26 13:58:00.00"
              version="1.2-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
   <!-- snapshots before dateToStartKeepingOneSnapshotByWeek-->
   <snapshots depth="[null]" id="1000" scope="PRJ" qualifier="TRK" created_at="2010-11-02 13:58:00.00"
              version="3.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <snapshots depth="[null]" id="1010" scope="PRJ" qualifier="TRK" created_at="2010-11-03 13:58:00.00"
              version="3.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
   <!-- same day than 1010 -->
   <snapshots depth="[null]" id="1020" scope="PRJ" qualifier="TRK" created_at="2010-11-03 20:26:00.00"
              version="3.0-SNAPSHOT"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
 
 
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeletedResourcesTest/purgeDeletedResources-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeletedResourcesTest/purgeDeletedResources-result.xml
index b8fc9ad93b8..449add6cacb 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeletedResourcesTest/purgeDeletedResources-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeletedResourcesTest/purgeDeletedResources-result.xml
@@ -1,22 +1,22 @@
 <dataset>
 
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="3"-->
   <!--parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
   <!--path="[null]"/>-->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeletedResourcesTest/purgeDeletedResources.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeletedResourcesTest/purgeDeletedResources.xml
index 01cf54c20c9..4d4e2547be2 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeletedResourcesTest/purgeDeletedResources.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeletedResourcesTest/purgeDeletedResources.xml
@@ -1,22 +1,22 @@
 <dataset>
 
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDependenciesTest/purgeDependencies-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDependenciesTest/purgeDependencies-result.xml
index 2d37ec58db4..c45963e2e94 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDependenciesTest/purgeDependencies-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDependenciesTest/purgeDependencies-result.xml
@@ -28,53 +28,53 @@
 
 
   <!-- old snapshots -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="3" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="5" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="5"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="3" status="P" islast="false"
              path="[null]"/>
 
   <!-- last snapshots -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="6" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="7" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="7" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="6" root_project_id="[null]" root_snapshot_id="6" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="8" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="8" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="9" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="9" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="8" root_project_id="[null]" root_snapshot_id="8" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="10" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="10" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="8" root_project_id="[null]" root_snapshot_id="8" status="P" islast="true"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDependenciesTest/purgeDependencies.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDependenciesTest/purgeDependencies.xml
index 6f6023b783c..743ad341205 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDependenciesTest/purgeDependencies.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDependenciesTest/purgeDependencies.xml
@@ -28,53 +28,53 @@
 
 
   <!-- old snapshots -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="3" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="5" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="5"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="3" status="P" islast="false"
              path="[null]"/>
 
   <!-- last snapshots -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="6" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="7" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="7" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="6" root_project_id="[null]" root_snapshot_id="6" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="8" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="8" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="9" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="9" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="8" root_project_id="[null]" root_snapshot_id="8" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="10" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="10" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="8" root_project_id="[null]" root_snapshot_id="8" status="P" islast="true"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeprecatedLastTest/purgeDeprecatedLast-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeprecatedLastTest/purgeDeprecatedLast-result.xml
index a42c0957935..9d24e4d5d4f 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeprecatedLastTest/purgeDeprecatedLast-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeprecatedLastTest/purgeDeprecatedLast-result.xml
@@ -2,24 +2,24 @@
 
   <!-- old snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
 
   <!-- last but project is not last -->
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="3"-->
   <!--parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="true"-->
   <!--path="[null]"/>-->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeprecatedLastTest/purgeDeprecatedLast.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeprecatedLastTest/purgeDeprecatedLast.xml
index ccecea3a765..d5b7a63681e 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeprecatedLastTest/purgeDeprecatedLast.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDeprecatedLastTest/purgeDeprecatedLast.xml
@@ -2,24 +2,24 @@
 
   <!-- old snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
 
   <!-- last but project is not last -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/nothingToPurge-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/nothingToPurge-result.xml
index 4e657d07d0a..507b4fa3689 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/nothingToPurge-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/nothingToPurge-result.xml
@@ -24,27 +24,27 @@
             description="[null]"
             enabled="true" language="java" copy_resource_id="1"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path=""/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1.2."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1.2.3."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="5" scope="PRJ" qualifier="TRK" created_at="2009-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="5" scope="PRJ" qualifier="TRK" created_at="2009-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path=""/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/nothingToPurge.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/nothingToPurge.xml
index 4e657d07d0a..507b4fa3689 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/nothingToPurge.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/nothingToPurge.xml
@@ -24,27 +24,27 @@
             description="[null]"
             enabled="true" language="java" copy_resource_id="1"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path=""/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1.2."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1.2.3."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="5" scope="PRJ" qualifier="TRK" created_at="2009-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="5" scope="PRJ" qualifier="TRK" created_at="2009-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path=""/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledModule-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledModule-result.xml
index b40bb736b36..4b4d3167d2d 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledModule-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledModule-result.xml
@@ -22,22 +22,22 @@
   <!--enabled="true" language="java" copy_resource_id="1"/>-->
 
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path=""/>
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="2"-->
   <!--parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
   <!--path="1."/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="3"-->
   <!--parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
   <!--path="1.2."/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="4"-->
   <!--parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
   <!--path="1.2.3."/>-->
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledModule.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledModule.xml
index 75633ab1470..ce4950df480 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledModule.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledModule.xml
@@ -25,22 +25,22 @@
             enabled="false" language="java" copy_resource_id="1"/>
 
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path=""/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1.2."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1.2.3."/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledProject-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledProject-result.xml
index 0b530d602ae..aa7cae75358 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledProject-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledProject-result.xml
@@ -28,34 +28,34 @@
             enabled="true" language="java" copy_resource_id="[null]"/>
 
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="1"-->
   <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"-->
   <!--path=""/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="2"-->
   <!--parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
   <!--path="1."/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="3"-->
   <!--parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
   <!--path="1.2."/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="4"-->
   <!--parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
   <!--path="1.2.3."/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="5" scope="PRJ" qualifier="TRK" created_at="2009-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="5" scope="PRJ" qualifier="TRK" created_at="2009-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="1"-->
   <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"-->
   <!--path=""/>-->
 
 
   <!-- enabled -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="6" scope="PRJ" qualifier="TRK" created_at="2009-02-14 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="6" scope="PRJ" qualifier="TRK" created_at="2009-02-14 13:58:00.00" version="[null]"
              project_id="5"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path=""/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledProject.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledProject.xml
index f24e7653019..5ab067cfffb 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledProject.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeDisabledResourcesTest/purgeDisabledProject.xml
@@ -33,34 +33,34 @@
 
 
   <!-- disabled -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path=""/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="1" id="2" scope="PRJ" qualifier="BRC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="2" id="3" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1.2."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="3" id="4" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="1.2.3."/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="5" scope="PRJ" qualifier="TRK" created_at="2009-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="5" scope="PRJ" qualifier="TRK" created_at="2009-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path=""/>
 
 
   <!-- enabled -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="0" id="6" scope="PRJ" qualifier="TRK" created_at="2009-02-14 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="0" id="6" scope="PRJ" qualifier="TRK" created_at="2009-02-14 13:58:00.00" version="[null]"
              project_id="5"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path=""/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeEntitiesTest/purgeEntities-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeEntitiesTest/purgeEntities-result.xml
index 520b2c67dcc..f70f99ba039 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeEntitiesTest/purgeEntities-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeEntitiesTest/purgeEntities-result.xml
@@ -2,22 +2,22 @@
 
   <!-- old snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="3"-->
   <!--parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"-->
   <!--path="[null]"/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="4"-->
   <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"-->
   <!--path="[null]"/>-->
@@ -25,22 +25,22 @@
 
   <!-- last snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="5" root_project_id="[null]" root_snapshot_id="5" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="7" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="7" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="6" root_project_id="[null]" root_snapshot_id="5" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="8" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="8" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeEntitiesTest/purgeEntities.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeEntitiesTest/purgeEntities.xml
index ffda72fb300..197bdfad8c3 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeEntitiesTest/purgeEntities.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeEntitiesTest/purgeEntities.xml
@@ -2,22 +2,22 @@
 
   <!-- old snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
@@ -25,22 +25,22 @@
 
   <!-- last snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="5" root_project_id="[null]" root_snapshot_id="5" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="7" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="7" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="6" root_project_id="[null]" root_snapshot_id="5" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="8" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="8" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeRuleMeasuresTest/purgeRuleMeasures-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeRuleMeasuresTest/purgeRuleMeasures-result.xml
index becb815ecca..95746d0865e 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeRuleMeasuresTest/purgeRuleMeasures-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeRuleMeasuresTest/purgeRuleMeasures-result.xml
@@ -2,17 +2,17 @@
 
   <!-- old snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
@@ -20,17 +20,17 @@
 
   <!-- last snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="5" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="4" root_project_id="[null]" root_snapshot_id="4" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="6" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="5" root_project_id="[null]" root_snapshot_id="4" status="P" islast="true"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeRuleMeasuresTest/purgeRuleMeasures.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeRuleMeasuresTest/purgeRuleMeasures.xml
index e970b6bf29b..6aada47df5e 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeRuleMeasuresTest/purgeRuleMeasures.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeRuleMeasuresTest/purgeRuleMeasures.xml
@@ -2,17 +2,17 @@
 
   <!-- old snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
@@ -20,17 +20,17 @@
 
   <!-- last snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="5" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="4" root_project_id="[null]" root_snapshot_id="4" status="P" islast="true"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="6" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="5" root_project_id="[null]" root_snapshot_id="4" status="P" islast="true"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeUnprocessedTest/purgeUnprocessed-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeUnprocessedTest/purgeUnprocessed-result.xml
index 8a2352b8805..04e9086dc50 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeUnprocessedTest/purgeUnprocessed-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeUnprocessedTest/purgeUnprocessed-result.xml
@@ -2,22 +2,22 @@
 
   <!-- valid snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
@@ -25,22 +25,22 @@
 
   <!-- unprocessed snapshots -->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="1"-->
   <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="U" islast="false"-->
   <!--path="[null]"/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="2"-->
   <!--parent_snapshot_id="5" root_project_id="[null]" root_snapshot_id="5" status="U" islast="false"-->
   <!--path="[null]"/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="7" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="7" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="3"-->
   <!--parent_snapshot_id="6" root_project_id="[null]" root_snapshot_id="5" status="U" islast="false"-->
   <!--path="[null]"/>-->
 
-  <!--<snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="8" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"-->
+  <!--<snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="8" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"-->
   <!--project_id="4"-->
   <!--parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="U" islast="false"-->
   <!--path="[null]"/>-->
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeUnprocessedTest/purgeUnprocessed.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeUnprocessedTest/purgeUnprocessed.xml
index b8457fee81e..979b3e30ef3 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeUnprocessedTest/purgeUnprocessed.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/PurgeUnprocessedTest/purgeUnprocessed.xml
@@ -2,22 +2,22 @@
 
   <!-- valid snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="3" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="2" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="4" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
@@ -25,22 +25,22 @@
 
   <!-- unprocessed snapshots -->
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="U" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="5" root_project_id="[null]" root_snapshot_id="5" status="U" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="7" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="7" scope="FIL" qualifier="CLA" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="3"
              parent_snapshot_id="6" root_project_id="[null]" root_snapshot_id="5" status="U" islast="false"
              path="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" depth="[null]" id="8" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" depth="[null]" id="8" scope="FIL" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="4"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="U" islast="false"
              path="[null]"/>
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/UnflagLastDoublonsTest/unflagLastDoublons-result.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/UnflagLastDoublonsTest/unflagLastDoublons-result.xml
index 7d758155b48..4e53b22c276 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/UnflagLastDoublonsTest/unflagLastDoublons-result.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/UnflagLastDoublonsTest/unflagLastDoublons-result.xml
@@ -24,45 +24,45 @@
   <snapshots depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 
   <snapshots depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 
 
   <!-- second analysis, flag islast => false -->
   <snapshots depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2009-02-14 00:00:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 
   <snapshots depth="[null]" id="4" scope="DIR" qualifier="PAC" created_at="2009-02-14 00:00:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="3" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 
   <!-- third analysis, flag islast => false -->
   <snapshots depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2009-04-01 00:00:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 
   <snapshots depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2009-04-01 00:00:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="5" root_project_id="[null]" root_snapshot_id="5" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 
 
   <!-- last analysis -->
   <snapshots depth="[null]" id="7" scope="PRJ" qualifier="TRK" created_at="2009-05-18 00:00:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 
   <snapshots depth="[null]" id="8" scope="DIR" qualifier="PAC" created_at="2009-05-18 00:00:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="7" root_project_id="[null]" root_snapshot_id="7" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 </dataset>
\ No newline at end of file
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/UnflagLastDoublonsTest/unflagLastDoublons.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/UnflagLastDoublonsTest/unflagLastDoublons.xml
index 8d71f041cff..511551f4acc 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/UnflagLastDoublonsTest/unflagLastDoublons.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/purges/UnflagLastDoublonsTest/unflagLastDoublons.xml
@@ -24,45 +24,45 @@
   <snapshots depth="[null]" id="1" scope="PRJ" qualifier="TRK" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" />
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" />
 
   <snapshots depth="[null]" id="2" scope="DIR" qualifier="PAC" created_at="2008-12-02 13:58:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="1" root_project_id="[null]" root_snapshot_id="1" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
 
   <!-- second analysis, crazy state : project not last, but package flagged as last -->
   <snapshots depth="[null]" id="3" scope="PRJ" qualifier="TRK" created_at="2009-02-14 00:00:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
   <snapshots depth="[null]" id="4" scope="DIR" qualifier="PAC" created_at="2009-02-14 00:00:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="3" root_project_id="[null]" root_snapshot_id="3" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
   <!-- third analysis, flagged as last -->
   <snapshots depth="[null]" id="5" scope="PRJ" qualifier="TRK" created_at="2009-04-01 00:00:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
   <snapshots depth="[null]" id="6" scope="DIR" qualifier="PAC" created_at="2009-04-01 00:00:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="5" root_project_id="[null]" root_snapshot_id="5" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
 
   <!-- last analysis -->
   <snapshots depth="[null]" id="7" scope="PRJ" qualifier="TRK" created_at="2009-05-18 00:00:00.00" version="[null]"
              project_id="1"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 
   <snapshots depth="[null]" id="8" scope="DIR" qualifier="PAC" created_at="2009-05-18 00:00:00.00" version="[null]"
              project_id="2"
              parent_snapshot_id="7" root_project_id="[null]" root_snapshot_id="7" status="P" islast="true"
-             path="[null]" variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]"/>
+             path="[null]" period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]"/>
 </dataset>
\ No newline at end of file
diff --git a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/runner/PurgeRunnerTest/shared.xml b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/runner/PurgeRunnerTest/shared.xml
index 89e488f470e..81725322523 100644
--- a/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/runner/PurgeRunnerTest/shared.xml
+++ b/plugins/sonar-dbcleaner-plugin/src/test/resources/org/sonar/plugins/dbcleaner/runner/PurgeRunnerTest/shared.xml
@@ -12,25 +12,25 @@
             enabled="true" language="java" copy_resource_id="[null]"/>
 
   <!-- first snapshot -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" id="100" scope="PRJ" qualifier="TRK" created_at="2009-11-02 13:58:00.00" version="0.1-SNAPSHOT"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" id="100" scope="PRJ" qualifier="TRK" created_at="2009-11-02 13:58:00.00" version="0.1-SNAPSHOT"
              project_id="1" depth="[null]"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
   <!-- unvalid snapshot (status = UNPROCESSED) -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" id="200" scope="PRJ" qualifier="TRK" created_at="2009-11-03 13:58:00.00" version="0.1-SNAPSHOT"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" id="200" scope="PRJ" qualifier="TRK" created_at="2009-11-03 13:58:00.00" version="0.1-SNAPSHOT"
              project_id="1" depth="[null]"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="U" islast="false"
              path="[null]"/>
 
   <!-- second snapshot -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" id="300" scope="PRJ" qualifier="TRK" created_at="2009-11-04 13:58:00.00" version="0.1-SNAPSHOT"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" id="300" scope="PRJ" qualifier="TRK" created_at="2009-11-04 13:58:00.00" version="0.1-SNAPSHOT"
              project_id="1" depth="[null]"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="false"
              path="[null]"/>
 
   <!-- last snapshot -->
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" id="400" scope="PRJ" qualifier="TRK" created_at="2009-11-05 13:58:00.00" version="0.1-SNAPSHOT"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" id="400" scope="PRJ" qualifier="TRK" created_at="2009-11-05 13:58:00.00" version="0.1-SNAPSHOT"
              project_id="1" depth="[null]"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>
@@ -45,7 +45,7 @@
             description="[null]"
             enabled="true" language="java" copy_resource_id="[null]"/>
 
-  <snapshots variation_mode_1="[null]" variation_param_1="[null]" variation_mode_2="[null]" variation_param_2="[null]" variation_mode_3="[null]" variation_param_3="[null]" variation_mode_4="[null]" variation_param_4="[null]" variation_mode_5="[null]" variation_param_5="[null]" id="1000" scope="PRJ" qualifier="TRK" created_at="2009-11-05 13:58:00.00" version="0.1-SNAPSHOT"
+  <snapshots period1_mode="[null]" period1_param="[null]" period1_date="[null]" period2_mode="[null]" period2_param="[null]" period2_date="[null]" period3_mode="[null]" period3_param="[null]" period3_date="[null]" period4_mode="[null]" period4_param="[null]" period4_date="[null]" period5_mode="[null]" period5_param="[null]" period5_date="[null]" id="1000" scope="PRJ" qualifier="TRK" created_at="2009-11-05 13:58:00.00" version="0.1-SNAPSHOT"
              project_id="2" depth="[null]"
              parent_snapshot_id="[null]" root_project_id="[null]" root_snapshot_id="[null]" status="P" islast="true"
              path="[null]"/>