static function countAll($type, $cond = array())
 {
     $rows = eZPersistentObject::fetchObject(eZRobinsonListEntry::definition($type), array(), array_merge($cond, eZRobinsonListEntry::addCondition($type, array())), false, false, array(array('operation' => 'count( * )', 'name' => 'count')));
     return $rows['count'];
 }