Advanced ActionScript 3 with Design Patterns

Chapter 6. Proxy Pattern

<feature><title>In This Chapter</title>

• Virtual Proxy 83

• Remote Proxy 89

• Adapter and Façade Patterns 94

• Summary 94

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The Proxy pattern gives us a solution to a very common programming task. A proxy is a class that stands in for and provides access to another object. This other object isn’t always an ActionScript object. It could be an image file, an XML file, a Flash Remoting service, or a Web service.

There are many reasons for wanting to use a proxy object, and each reason has its own type of proxy. One reason you might want to control access to an object is because it is a remote resource; in such a case, the proxy object can manage the communication to and from that object. This is called a Remote Proxy, and we’ll ...