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The Proxy Design Pattern in Java

Introduction The Proxy Design Pattern is a design pattern belonging to the set of structural patterns [/structural-design-patterns-in-java/]. Structural patterns are a category of design patterns used to simplify the design of a program on its structural level. As its name suggests, the proxy pattern means using a proxy for some other entity. In other words, a proxy is used as an intermediary in front of, or wrapped around, an existing object. This can be used, for example, when the actual object is very resource-intensive or when there are certain conditions which need to be checked before using the actual object. A proxy can also be useful if we'd like to limit the access or functionality of an object.