ActionScript Developer's Guide to Robotlegs by Joel Hooks

By Joel Hooks

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 web Applications—fast. This concise advisor exhibits you the way the sunshine footprint and targeted scope of this open resource framework not just solves your rapid coding difficulties, it is helping you achieve perception into AS3 structure on a miles deeper point. The authors offer a walkthrough of particular good points in purposes they have written in Robotlegs, whole with code for every program as a complete. you are going to methods to in attaining a stability of flexibleness and consistency on your personal projects.Solve eighty% of your coding issues of 20% of the API achieve code-base flexibility with computerized Dependency Injection research the anatomy of a Robotlegs program comprehend the relationships among types, companies, regulate code, and perspectives within the framework's MVCS structure See how the Robotlegs’ process enables attempt pushed improvement (TDD) choose up sensible tools for architecting Robotlegs ideas Get specialist insights to power-up your present Robotlegs code

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Extra resources for ActionScript Developer's Guide to Robotlegs

Example text

A getInstance() singleton always requires you to be dependent on a concrete class. loadAll(); } With Robotlegs Automated DI, we can declare a particular dependency in a class, and configure our application (through our context) to know how to fulfil that dependency: which concrete class to inject against an interface for example. In this example, IUserLoader might be fulfilled by XmlUserLoader, JsonUserLoader or even DummyUserLoader: public class LoadUserCommand { //We can swap out our IUserLoader implementations easily.

Use startup() to provide your injection rules, map your mediators to views and commands to events startup() is the most important method in your whole app. It’s where you initially configure your application—where you determine which classes will be injected and how, which view classes will get what kind of mediators, and what commands will be triggered by events. Example 5-3. ERROR, DatabaseErrorHandlerCommand); dispatchEvent(new ConfigureDatabaseEvent()) } You will quickly find that this approach leads to a rather messy startup() method in an app of any significant size.

We enjoy the reduction in complexity that comes from wrapping it up as a single-purpose action in a command. Example 7-1. exists) { // We use the injector to instantiate the DatabaseCreator here because // we want to inject the SQLRunner that is mapped above. This works // well even though the DatabaseCreator is not a mapped object, we still // get access to injections from Robotlegs by creating it this way!

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