1 files changed, 9 insertions, 3 deletions
diff --git a/3rdparty/Sabre/DAV/Property.php b/3rdparty/Sabre/DAV/Property.php
index 1cfada3236c..6487bf44bc4 100755
--- a/3rdparty/Sabre/DAV/Property.php
+++ b/3rdparty/Sabre/DAV/Property.php
@@ -11,10 +11,16 @@
  * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
-abstract class Sabre_DAV_Property {
-
-    abstract function serialize(Sabre_DAV_Server $server, DOMElement $prop);
+abstract class Sabre_DAV_Property implements Sabre_DAV_PropertyInterface {
 
+    /**
+     * Unserializes the property.
+     *
+     * This static method should return a an instance of this object.
+     *
+     * @param DOMElement $prop
+     * @return Sabre_DAV_IProperty
+     */
     static function unserialize(DOMElement $prop) {
 
         throw new Sabre_DAV_Exception('Unserialize has not been implemented for this class');