Added link call to AVMService. It essentially creates a hard link

without the bad aftertaste.  It's needed for the AVMSyncService's
update method which will move new versions of nodes from one AVM
tree to another.  Also a checkpoint for AVMSyncService. One can safely
call compare and get back an empty List of AVMDifferences.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3784 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/service/cmr/avm/AVMService.java

@@ -668,4 +668,12 @@ public interface AVMService
      * @return Whether the given node has the given aspect.
      */
     public boolean hasAspect(int version, String path, QName aspectName);
+    
+    /**
+     * This inserts a node into a parent directly.
+     * @param parentPath The path to the parent directory.
+     * @param name The name to give the node.
+     * @param toLink A descriptor for the node to insert.
+     */
+    public void link(String parentPath, String name, AVMNodeDescriptor toLink);
 }