Adapter Pattern

• Definition: Convert an interface to another interface that the client wants, so that those classes with incompatible interfaces can work together, and its alias is Wrapper;
• Classification:
  • Object adapter: There is an association relationship between the adapter and the adapter;
  • Class adapter: There is an inheritance (or implementation) relationship between the adapter and the adapter;
• default adapter
  • When you do not need to implement all the methods provided by an interface, you can design an abstract class to implement the interface and provide a
    default implementation (empty method) for each method in the interface, then subclasses of the abstract class can selectively Override certain methods of the parent class to implement the requirements; also known as the single-interface adapter pattern;