implementing a singleton RemoteObject for differentstates Help

#1 (**permalink**) 11-04-2008, 11:22 PM

Hello,
different states in my application need to pull data from a single
remote object. however, for some reason it's not been created properly. I've
noticed that there are two classes of RemoteObject in flex. The
packages mx.rpc.remoting and mx.rpc.remoting.mxml. I used the first one. Is
this right? Below is my code.

Help appreciated.
Thanks,
Xilian

//--------------------------<Remote Object wrapped as singleton in an
actionscript class>------------------------------
import mx.rpc.remoting.RemoteObject;
[Bindable]
public class CrawlerHandler
{
private static var _crawler:RemoteObject; //only one instance for application

/**
* creates and initializes new web crawler engine
*/
private static function initialize():void
{
_crawler = new RemoteObject();
_crawler.destination = "Crawler";
}

public static function getInstance():RemoteObject
{
if(_crawler == null)
initialize();
return _crawler;

}
}

//-------------------<body of code in a state's actionscript, where remote
object is referenced>---------------------------------
var crawler:RemoteObject = CrawlerHandler.getInstance();
var csvData:String = crawler.getCSV(); //<<----------------object not
created correctly
if(csvData.length > 0)
{
downloadCSVFile(csvData);
}