Horde_Kolab_Storage_Driver::rename PHP Method

    public function rename($old, $new);

 /**
  * Rename a folder.
  *
  * @param string $old The old path of the folder.
  * @param string $new The new path of the folder.
  *
  * @return NULL
  */
 public function renameFolder($old, $new)
 {
     $this->_driver->rename($old, $new);
     foreach ($this->_listeners as $listener) {
         $listener->updateAfterRenameFolder($old, $new);
     }
 }