PureMVC ApplicationFacade Class Template

/**
 * Base PureMVC Project
 */
package {
 
    import org.puremvc.as3.interfaces.IFacade;
    import org.puremvc.as3.patterns.facade.Facade;
	import controller.*;
 
	/**
	 * Simple ApplicationFacade for PureMVC Structured Project
	 */
 
    public class ApplicationFacade extends Facade implements IFacade {
 
		/**
         * Notification name constants
		 */
        public static const STARTUP:String = "startup";
 
		/**
		 * Singleton ApplicationFacade Factory Method
		 */
        public static function getInstance(): ApplicationFacade {
 
            if (instance == null) {
				instance = new ApplicationFacade( );
			}
            return instance as ApplicationFacade;
        }
 
		/**
		 * Broadcast the STARTUP Notification
		 */
		public function startup(app:Object):void {
			sendNotification( STARTUP, app );
		}
 
        /**
 		 * Register Commands with the Controller 
		 */
        override protected function initializeController():void 
        {
            super.initializeController();
 
            registerCommand(STARTUP, StartupCommand);
        }
    }
}