Patch for recent Layered lookup changes.

Miscellaneous cleanups noticed on the way.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5586 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/avm/AVMNodeDAO.java

@@ -105,4 +105,18 @@ public interface AVMNodeDAO
      * @return An iterator over all nodes.
      */
     List<AVMNode> getEmptyGUIDS(int count);
+    
+    /**
+     * Get a batch of LayeredDirectories which have null indirectionVersions.
+     * @param count
+     * @return
+     */
+    List<LayeredDirectoryNode> getNullVersionLayeredDirectories(int count);
+    
+    /**
+     * Get a batch of LayeredFiles which have null indirectionVersions.
+     * @param count
+     * @return
+     */
+    List<LayeredFileNode> getNullVersionLayeredFiles(int count);
 }