Software Architecture Design Patterns in Java

26 COUNTING PROXY

This pattern was previously described in GoF95.

DESCRIPTION

The Counting Proxy pattern is useful in designing a set of additional operations such as logging and counting that need to be performed before and/or after a client object invokes a method on a service pr ovider object. Instead of keeping these additional operations’ implementation inside the service provider object, the Counting Proxy pattern suggests encapsulating the additional functionality in a separate object referred to as a counting proxy. One of the characteristics of a well-designed object is that it offers focused functionality. In other words, an object, ideally, should not do various unr elated things. Encapsulating the logging, counting and other similar ...