Using the responder directly

gistfile1.as

/* EXAMPLE OF USING THE RESPONDER DIRECTLY */

//IConfigDataRetrieverService
function retrieveConfigData():ISignalResponder;

//XMLLoaderConfigDataRetrieverService
private var _loader : XMLLoader;
public function retrieveConfigData() : ISignalResponder{
	var request : URLRequest = new URLRequest( 'config.xml' );
	_loader = new XMLLoader( request )
	return _loader.responder;
}

//RetrieveConfigDataCommand
[Inject]
public var configDataRetrieverService : IConfigDataRetrieverService

public function execute() : void{
	commandMap.detain( this );
	var responder : ISignalResponder = service.retrieveConfigData();
	responder.successSignal.addOnce( _handleConfigDataSuccessSignal );
	responder.failureSignal.addOnce( _handleConfigDataFailureSignal );
}

private function _handleConfigDataSuccessSignal( xml : XML ) : void{
	//do stuff with xml
	commandMap.release( this );
}

private function _handleConfigDataFailureSignal() : void{
	var mailer : AS3Mailer = new AS3Mailer();
	mailer.send("buggyapplication@somewhere.com", "crappydeveloper@somewhere.com", "Dear Crappy Developer", "You suck!");
	commandMap.release( this );
}


//And again, we could swap the implementation of IConfigDataRetrieverService to another one
//not using AssetLoader