Now a days, BlazeDS is a pretty well known framework for retrieving data for a flex application. It has even been integrated into a recently released package of Spring. It is an open source, scaled down version of Life Cycle Data Services. It doesn’t have all the glamor as LCDS, but its still 100% useful in most applications.
One of the great features it has taken from LCDS is the ability to support data push. Namely, data push with remote objects, which is great. No more having the client continuously call the server to see if there is new data to be shown. The server is the one who lets the client knows via an httpchannel. So now not only do you get to not have to keep polling, checking for data, but you also get to have remote objects integrated into your application.
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Marcel Flex, tutorial Actionscript, blazeds, Flex, howto, tutorial
So when I last posted an article, I did an example on PureMvc. It was just something small and simple. One of the thing I do not like about PureMvc though (plan on writing an article about this later) is the mediators “handleNotification” function. It seems to almost be common practice with PureMvc that you have this function and it just turns into a massive switch statement to find out what came back, where it goes, how its handled, etc. Fine some something small, but we have all seen what can happen with rogue switch statements. I’m sure there are more eligant work arounds for this, but I see it as a decent sized flaw.
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Marcel Flex, tutorial Actionscript, fabrication, Flex, howto, puremvc, tutorial
Well it has been awhile since I have written anything, but that doesn’t mean that I haven’t been busy. Lately at work I’ve been working a lot more closely with Flex, writing some pretty creative/new custom components, learning a lot, etc. Lately we discussed the possibilities of switching from the standard use of Cairngorm to the use a PureMVC, so I wanted to go over a brief tutorial of PureMVC to show how its used. Later I will be posting a short article over the differences of cairngorm vs PureMVC.
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Marcel Flex Actionscript, Flex, puremvc