/**
  * Remove all Items from the set.
  * @access public
  * @return void
  */
 function removeAllItems()
 {
     parent::removeAllItems();
     // Remove the item from the database
     $query = new DeleteQuery();
     $query->setTable("sets");
     $query->addWhere("id='" . addslashes($this->_setId->getIdString()) . "'");
     $dbHandler = Services::getService("DatabaseManager");
     $dbHandler->query($query, $this->_dbIndex);
 }