December 2008
Intermediate to advanced
360 pages
8h 21m
English
book
Flex on Rails: Building Rich Internet Applications with Adobe Flex 3 and Rails 2
by Tony Hillerson, Daniel Wanja
Content preview from Flex on Rails: Building Rich Internet Applications with Adobe Flex 3 and Rails 2
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16 Reusing Commands with Prana Sequences
Goal
You’re using Cairngorm, and you want to describe sequences of events that take place on certain user actions. These sequences of events involve different commands that you’d like to keep separate from each other, so that each remains reusable in the maximum number of scenarios.
Solution
Use Prana (http://pranaframework.org) and its EventSequence class to describe a sequence of CairngormEvents, the properties of which, when changed, should trigger them.
Sequences
Keep your Cairngorm commands reusable by keeping them from knowing too much about other commands. Commands should be as atomic as possible; to use a time-honored phrase, they should do one thing and do it well. If ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.