[EMAIL PROTECTED] Mon Apr 05 13:22:00 2004 Return-Path: <[EMAIL PROTECTED]> X-Sender: [EMAIL PROTECTED] X-Apparently-To: [email protected] Received: (qmail 533 invoked from network); 5 Apr 2004 18:51:34 -0000 Received: from unknown (66.218.66.172) by m13.grp.scd.yahoo.com with QMQP; 5 Apr 2004 18:51:34 -0000 Received: from unknown (HELO smtp-out6.blueyonder.co.uk) (195.188.213.9) by mta4.grp.scd.yahoo.com with SMTP; 5 Apr 2004 18:51:29 -0000 Received: from [192.168.0.9] ([82.41.16.63]) by smtp-out6.blueyonder.co.uk with Microsoft SMTPSVC(5.0.2195.5600); Mon, 5 Apr 2004 19:50:38 +0100 To: [email protected] In-Reply-To: <[EMAIL PROTECTED]> References: <[EMAIL PROTECTED]> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8 (1.0.8-10) Date: 05 Apr 2004 19:52:02 +0100 Message-Id: <[EMAIL PROTECTED]> Mime-Version: 1.0 Return-Path: [EMAIL PROTECTED] X-OriginalArrivalTime: 05 Apr 2004 18:50:38.0346 (UTC) FILETIME=[E2FE5EA0:01C41B3E] X-eGroups-Remote-IP: 195.188.213.9 From: Steven Webster <[EMAIL PROTECTED]> Subject: Re: [flexcoders] Implementing a controller w/ command pattern X-Yahoo-Group-Post: member; u=114339942 X-Yahoo-Profile: swebsteratiterationtwo
Hey Brian, On Mon, 2004-04-05 at 17:40, Brian LeRoux wrote: > Just curious how you would approach applying the Command > pattern as demoed in the iteration2 amazon ria in a Flex app. I'm > thinking a Command should implement the MXMLObject interface, as well > as ICommand, to access the view (and thus flash controls) but I'm not > totally sure. Right track? Way off? You input is appreciated! :) Yeah, those crazy iteration::two guys, and their RIA design patterns..... ;-) You know, they're kinda working on another book right now, called "Developing Rich Clients with Macromedia Flex", that you'll find a bit more detail of at: http://www.iterationtwo.com/news_100204.html Chapter 21 I believe is about Flex and J2EE Integration, and in there, we go through a re-implementation of the RIA patterns we documented in the AS2.0 Dictionary, in the brave new world of Flex.... :) The good, and entirely off the record :) news, is that this chapter is a candidate for being made available in the near future as a trial download ... and when it does, we'll be sure to let the list know. In brief; nothing changes as far as the Command pattern is concerned, you *can* still implement this alongside the Controller class exactly the way we described in the AS2.0 dictionary. The patterns that we've elected to implement a little differently with MXML, are the Service Locator pattern (because the RemoteObject and WebService tag do quite a bit of the heavy lifting for us, and that places a new requirement on how we handle pending calls returned back from these data service calls), and the View Helper strategy is a daily-discussion in our office at present, as we flit between MXML and ActionScript 2.0 solutions. I don't see that you'd gain anything extending MXMLObject, or implementing that interface, in your command classes, which should/could be ambivalent to whether you are using Flex or plain-old-RIAs with Flash and Remoting. Hold tight for that sample chapter, which was tech reviewed by Mad Matt Chotin...and is on it's way back to Alistair and I for final review as we speak... Best wishes, Steven -- Steven Webster Technical Director iteration::two
