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The dynamic proxy facility, part of the java.lang.reflect package and added to the JDK in version 1.3, allows programs to create proxy objects. This article show you how to add extra power to your design pattern implementations with dynamic proxies and eliminate many handwritten or generated classes.
Dynamic proxies provide an alternate, dynamic mechanism for implementing many common design patterns, including the Facade, Bridge, Interceptor, Decorator, Proxy (including remote and virtual proxies), and Adapter patterns. While all of these patterns can be easily implemented using ordinary classes instead of dynamic proxies, in many cases the dynamic proxy approach is more convenient and compact and can eliminate a lot of handwritten or generated classes.
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