Added accessors for node history. Added those to console.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3135 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

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

@@ -42,6 +42,13 @@ public interface AVMService
      */
     public InputStream getFileInputStream(int version, String path);
     
+    /**
+     * Get an input stream from a particular version of a file.
+     * @param desc The node descriptor pointing at the node.
+     * @return The InputStream.
+     */
+    public InputStream getFileInputStream(AVMNodeDescriptor desc);
+
     /**
      * Get an output stream to a file node.  The file must already exist.
      * @param path The simple absolute path to the file node.
@@ -248,4 +255,12 @@ public interface AVMService
      * @param path The full path.
      */
     public void makePrimary(String path);
+    
+    /**
+     * Get a list of all the ancestor versions of a node.
+     * @param desc The version of a node to find ancestors for.
+     * @param count How many. -1 means all.
+     * @return A List of ancestors starting with the most recent.
+     */
+    public List<AVMNodeDescriptor> getHistory(AVMNodeDescriptor desc, int count);
 }