Joel Hooks's ActionScript Developer's Guide to Robotlegs: Building PDF

By Joel Hooks

ISBN-10: 1449308902

ISBN-13: 9781449308902

Robotlegs is a standout one of the ActionScript three improvement frameworks to be had this day. With it, Flash, Flex, and AIR builders can create well-architected, testable, and versatile wealthy net functions - quick. This concise advisor exhibits you ways the sunshine footprint and concentrated scope of this open resource framework not just solves your quick coding difficulties, it is helping you achieve perception into AS3 structure on a miles deeper point. The authors supply a walkthrough of particular beneficial properties in functions they have written in Robotlegs, whole with code for every program as a complete. you are going to the way to in attaining a stability of flexibleness and consistency on your personal tasks.

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Extra resources for ActionScript Developer's Guide to Robotlegs: Building Flexible Rich Internet Applications

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The drawback of named injection is that it’s easy to create the kind of bug that is very difficult to find and diagnose. You can’t cover this kind of bug in unit testing, because in a unit test you’ll provide these dependencies manually. Automated Injection ‘Gotchas’ Automated DI is fairly simple once you get to grips with it, but there are a few common tripping points that can make your first experience with it frustrating if you’re not aware of them. If an object has an [Inject]ed dependency you have to create it using the Injector.

If you’ve asked your Flash Compiler to keep this metadata it will simply be included in your code—it doesn’t mean anything to the compiler or to the Flash runtime. We can find out, at runtime, what metadata a class has, and this information is what is used to power the Robotlegs Injector. Used in this way, the [Inject] tag enables something almost magical, but it’s important that you understand that, unlike native metadata such as [Bindable], all custom metadata is essentially meaningless. There is nothing special about [Inject]—we could ask you to tag your injection points with [Frog] and get the same results—provided the Robotlegs Injector knew that [Frog] was the metadata to look out for.

Again, if you’ve ever tackled this yourself, it’s worth remembering how you achieved it. 1. The SaveButtonMediator responds to the CLICK on the SaveButton by dispatching a SAVE_REQUESTED event 2. The SaveDesignCommand is triggered 3. The SaveDesignCommand pulls the current design’s name from the user’s config, and passes it to the DesignSavingService 4. The DesignSavingService attempts to save the design, reading it from the DesignModel 5. The DesignSavingService dispatches a SAVE_COMPLETED event The same but different What you might have noticed is that, although our two applications have very little in common, and although we developed them completely separately, and even though one is a Flex application and the other is a pure AS3 application, the flow through our applications is strikingly similar.

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ActionScript Developer's Guide to Robotlegs: Building Flexible Rich Internet Applications by Joel Hooks


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