1 files changed, 53 insertions, 0 deletions
diff --git a/sonar-db/src/main/java/org/sonar/db/version/DataChange.java b/sonar-db/src/main/java/org/sonar/db/version/DataChange.java
new file mode 100644
index 00000000000..d06e4d7b093
--- /dev/null
+++ b/sonar-db/src/main/java/org/sonar/db/version/DataChange.java
@@ -0,0 +1,53 @@
+/*
+ * SonarQube, open source software quality management tool.
+ * Copyright (C) 2008-2014 SonarSource
+ * mailto:contact AT sonarsource DOT com
+ *
+ * SonarQube is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * SonarQube is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+package org.sonar.db.version;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+import org.sonar.db.Database;
+
+public interface DataChange {
+
+  class Context {
+    private final Database db;
+    private final Connection readConnection;
+    private final Connection writeConnection;
+
+    public Context(Database db, Connection readConnection, Connection writeConnection) {
+      this.db = db;
+      this.readConnection = readConnection;
+      this.writeConnection = writeConnection;
+    }
+
+    public Select prepareSelect(String sql) throws SQLException {
+      return SelectImpl.create(db, readConnection, sql);
+    }
+
+    public Upsert prepareUpsert(String sql) throws SQLException {
+      return UpsertImpl.create(writeConnection, sql);
+    }
+
+    public MassUpdate prepareMassUpdate() throws SQLException {
+      return new MassUpdate(db, readConnection, writeConnection);
+    }
+  }
+
+  void execute(Context context) throws SQLException;
+}