/** * Returns an array containing, for each field, the arary key used for that * field in self::$_fields. * * @access public * @return array */ static function &fieldKeys() { if (!self::$_fieldKeys) { self::$_fieldKeys = array('id' => 'id', 'event_queue_id' => 'event_queue_id', 'time_stamp' => 'time_stamp'); } return self::$_fieldKeys; }