Practicing the Chain of Responsibility Pattern

The intent of the Chain of Responsibility pattern is to avoid coupling the sender of a request to its receiver by giving more than one object a chance to handle the request and further, chain the receiving objects and pass the request along the chain until an object handles it. In this article, Xianzhong shows the typical utilization of another popular design pattern, the Chain of Responsibility pattern, by developing a simple application service explorer example with the help of relevant screen shots and source code. He begins with a detailed analysis of the various requirements for developing the sample application followed by an overview of the design. He further provides comprehensive coverage of the template method pattern and the various aspects of the sample application including some improvements which need to be done to the design.

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