コード例 #1
0
 /**
  * The singleton method
  * 
  * @return Tracker_Hierarchy_HierarchicalTrackerFactory
  */
 public static function instance()
 {
     if (!self::$instance) {
         self::$instance = new Tracker_Hierarchy_HierarchicalTrackerFactory(TrackerFactory::instance(), new Tracker_Hierarchy_Dao());
     }
     return self::$instance;
 }