Design Patterns Explained: A New Perspective on Object-Oriented Design

Thinking in Patterns: Step 2d (Facade)

Next, I need to verify if any of the remaining patterns create a context for each other. In this case, Facade and Adapter now clearly relate to different pieces of the design and are independent of each other. Therefore, I can apply them in whatever order I choose. I will arbitrarily pick the Facade to apply next, which results in Figure 12-10.

Figure 12-10. After applying the Bridge and Facade patterns.

Applying the Facade pattern means that I insert a facade between the V1 modules and the V1Imp object that is going to use them. V1Facade has simplified methods that relate to what V1Imp needs to do. Each method ...