Agile Ajax

A Sequence Diagram for Scriptaculous

Dietrich Kappe, Thursday, July 26, 2007 @ 7:47 am

In reverse engineering the Scriptaculous into GWTaculous, I've done a bit of spelunking and produced a few artifacts to explain Scriptaculous to myself. I thought I'd share one of them -- a sequence diagram for Effects -- in the hopes that someone else will find it useful. The diagram below isn't complete -- it doesn't contain the event calls -- and it doesn't cover the Parallel effects, but it does give a decent overview for anyone trying to understand the Event lifecycle or someone trying to write their own effect.

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Comments: 1 so far

  1. Hi!

    I’m always on the lookout for some interesting sequence diagrams, so I was excited to see yours above. I think it’s neat you’re using SD’s in your blog to explain what’s going on.

    I’ve created Trace Modeler, a tool to quickly and easily create UML sequence diagrams (see http://www.tracemodeler.com). I’m especially interested in how sequence diagrams are used for web apps, because of their asynchronous nature.

    Anyway, about the diagram : I’m a bit confused about the long activation of the Effect instance and don’t understand who calls some of the methods (for example, are ‘initialize’ and ‘cancel’ really self-calls?).

    I’d like to help you get the diagram just right (and perhaps even expand it a bit) and in doing so learn a thing or two about SD’s in an AJAX context.

    Let me know if you’re interested!

    Best regards,
    Yanic

    Comment by Yanic, Wednesday, August 1, 2007 @ 2:31 pm

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