I will continue our study of design patterns with the Adapter pattern. The Adapter pattern is a very common pattern, and, as you will see, it is used with many other patterns.
I explain what the Adapter pattern is, where it is used, and how it is implemented.
I present the key features of the pattern.
I use the pattern to illustrate polymorphism.
I illustrate how the UML can be used at different levels of detail.
I present some observations on the Adapter pattern from my own practice, including a comparison of the Adapter pattern and the Facade pattern.
I relate the Adapter pattern to the CAD/CAM problem.
Note: I will only show Java code examples in the main body of this chapter. The equivalent C++ code examples can be found at the end of this chapter.