RE: [flexcoders] Flex dataservices: fill vs asynctoken

[Dirk Eismann]

Asynchronous methods like fill() return an AsyncToken instance which you can use to add custom data to it (i.e. mark that ypu invoked a fill operation). In the result handling function the AsyncToken is available again, so you can add additional logic to your result handler, e.g.   private function resultHandler(event:ResultEvent):void {   switch (event.token.kind)   {     case "fill":       ...     case "delete":       ...   } }   AsyncToken is a dynamic class so you can add whatever properties you like.   Another use case of AsyncToken is to add responders to it - this allows you to dynamically setup result/fault handling functions:   var token:AsyncToken = ds.fill(collection); token.addResponder(new ItemResponder(resultFunction, faultFunction, "fill"));   and then   private function resultFunction(result:Object, token:Object):void {   // result usually is of type ResultEvent,   // token is the third parameter passed to the ItemResponder constructor   if (result is ResultEvent)   {    ...   } }   private function faultFunction(result:Object, token:Object):void {   // result usually is of type FaultEvent,   // token is the third parameter passed to the ItemResponder constructor   if (result is FaultEvent)   {    ...   } }   Dirk. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Jonas Windey Sent: Wednesday, August 09, 2006 11:30 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Flex dataservices: fill vs asynctoken Hi,   I’m new to flex dataservices (using WebORB), and I like to know what’s the difference between:   ds = new DataService("contact"); ds.fill(contacts);   and   ds = new DataService("contact"); var token:AsyncToken = AsyncToken(ds.fill(contacts)); token.kind = "fill";   Thanks! Jonas   Jonas Windey Web Developer T. +32 3 216 86 47   Pixco Interactive Division T. +32 3 216 86 40 F. +32 3 216 86 49   http://www.pixco.com   __._,_.___ -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com SPONSORED LINKS Web site design development Computer software development Software design and development Macromedia flex Software development best practice YAHOO! GROUPS LINKS  Visit your group "flexcoders" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. __,_._,___