Description: Virtual proxy mode (Virtual Proxy) is a memory-saving technology, which recommended the creation of those who use up a lot of memory or processing of complex objects, to create such objects postponed to use it when. In specific applications, the functions of different parts of the object from different components, application startup time, would not immediately use all of the objects. Under such circumstances, the virtual agent model proposed to postpone the creation of objects until the application requires it so far. Application object is created when the first reference and the same can be an example of reuse. Both the advantages and disadvantages of this method.
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Java设计模式之虚拟代理模式.doc
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