add additional (unknown) flag when writing indexes

git-svn-id: https://svn.code.sf.net/p/jackcess/code/jackcess/trunk@528 f203690c-595d-4dc9-a70b-905162fa7fd2

2 files changed, 5 insertions, 2 deletions

diff --git a/src/java/com/healthmarketscience/jackcess/IndexBuilder.java b/src/java/com/healthmarketscience/jackcess/IndexBuilder.java
index 4799abf..11fa556 100644
--- a/src/java/com/healthmarketscience/jackcess/IndexBuilder.java
+++ b/src/java/com/healthmarketscience/jackcess/IndexBuilder.java
@@ -38,8 +38,9 @@ public class IndexBuilder
   private String _name;
   /** the type of the index */
   private byte _type;
-  /** additional index flags */
-  private byte _flags;
+  /** additional index flags (UNKNOWN_INDEX_FLAG always seems to be set in
+      access 2000+) */
+  private byte _flags = IndexData.UNKNOWN_INDEX_FLAG;
   /** the names and orderings of the indexed columns */
   private final List<Column> _columns = new ArrayList<Column>();
 
diff --git a/src/java/com/healthmarketscience/jackcess/IndexData.java b/src/java/com/healthmarketscience/jackcess/IndexData.java
index 4aed9e1..fa9d020 100644
--- a/src/java/com/healthmarketscience/jackcess/IndexData.java
+++ b/src/java/com/healthmarketscience/jackcess/IndexData.java
@@ -84,6 +84,8 @@ public abstract class IndexData {
 
   static final byte UNIQUE_INDEX_FLAG = (byte)0x01;
   static final byte IGNORE_NULLS_INDEX_FLAG = (byte)0x02;
+  static final byte SPECIAL_INDEX_FLAG = (byte)0x08; // set on MSysACEs and MSysAccessObjects indexes, purpose unknown
+  static final byte UNKNOWN_INDEX_FLAG = (byte)0x80; // always seems to be set on indexes in access 2000+
 
   private static final int MAGIC_INDEX_NUMBER = 1923;