PureMVC XML DataProxy Class Template

/**
 * Base PureMVC Project
 */
package model
{
    import flash.events.Event;
    import flash.net.URLLoader;
    import flash.net.URLRequest;
 
    import org.puremvc.as3.interfaces.IProxy;
    import org.puremvc.as3.patterns.proxy.Proxy;
 
	import ApplicationFacade;
 
    public class DataProxy extends Proxy implements IProxy
    {
        public static const NAME:String = "DataProxy";
 
        public function DataProxy()
        {
			trace ("DataProxy instantiated");
        	/**
        	 * Here, we initialize DataProxy with a var named "data" 
        	 * of type Object(), a built-in property of the Proxy class. 
        	 * This var will be used for storing data retrieved from the xml document.
        	 */
            super( NAME, new Object() );
 
            var loader:URLLoader = new URLLoader();
            loader.addEventListener( Event.COMPLETE, onDataLoaded );
			loader.load( new URLRequest( "data.xml" ) );
 
        }
 
		private function onDataLoaded( evt:Event ):void
		{
			trace ("DataProxy.onDataLoaded()");
 
			var xml:XML = new XML( evt.target.data );
			xml.ignoreWhitespace = true;
 
 
			/**
			 * When DataProxy is done loading and parsing data, it 
			 * sends an INITIALIZE_SITE notification back to the framework.
			 */
			sendNotification( ApplicationFacade.INITIALIZE_SITE );
		}		
    }
}