Patterns we didn’t discuss

I didn’t cover all 23 patterns in the GoF book. I only covered about half. A number of factors went into deciding what to include and what to leave for a tacit discussion in this chapter. Some of the patterns are more troublesome than they are worth. The Memento pattern solves a problem that can easily be solved with a few .NET features. Some patterns were not included because they are very similar to another pattern we covered. Some are patterns you are never likely to need. The Interpreter pattern is only useful if you are inventing a new programming language. This is rarely done anymore owing to the popularity of domain-specific languages (DSLs). Tools exist for the construction of DSLs that preclude the need for the Interpreter pattern.

Here are the patterns from the original GoF book we didn’t cover in this book:

• Prototype
• Adapter
• Flyweight
• Chain of Responsibility
• Proxy
• Interpreter
• Mediator
...