adapter

The Adapter Pattern converts the interface of a class into another interface that clients expect. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces.

Use case

In Chapter 7 of HFDP Book, we would like to make Turkey looks like a Duck, so we crate a TurkeyAdapter which implements Duck and is composed with Turkey.

Note that there are actually two kinds of adapters: object adapters and class adapters. In our code, we use the object adapters.

A summary of three similar patterns:

Pattern	Intent
Decorator	Doesn't alter the interface, but adds responsibility
Adapter	Converts one interface to another
Facade	Makes an interface simpler