Adds some convenience methods to AttributeService.

Namely two flavors each of addAttributes, for adding attributes to lists,
and setAttributes for adding entries to maps.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5804 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/attributes/MapAttributeValue.java

@@ -211,4 +211,13 @@ public class MapAttributeValue extends AttributeValue implements MapAttribute
         builder.append('}');
         return builder.toString();
     }
+
+    /* (non-Javadoc)
+     * @see org.alfresco.repo.attributes.AttributeValue#size()
+     */
+    @Override
+    public int size()
+    {
+        return fData.size();
+    }
 }