UML :
adapter.png
introduction :
/**
* An adapter helps two incompatible interfaces to work together. This is the real world definition
* for an adapter. Interfaces may be incompatible but the inner functionality should suit the need.
* The Adapter design pattern allows otherwise incompatible classes to work together by converting
* the interface of one class into an interface expected by the clients.
*
* There are two variations of the Adapter pattern: The class adapter implements the adaptee's
* interface whereas the object adapter uses composition to contain the adaptee in the adapter
* object. This example uses the object adapter approach.
*
* The Adapter ({@link BattleFishingBoat}) converts the interface of the adaptee class (
* {@link FishingBoat}) into a suitable one expected by the client ( {@link BattleShip} ).
*
* The story of this implementation is this. <br>
* Pirates are coming! we need a {@link BattleShip} to fight! We have a {@link FishingBoat} and our
* captain. We have no time to make up a new ship! we need to reuse this {@link FishingBoat}. The
* captain needs a battleship which can fire and move. The spec is in {@link BattleShip}. We will
* use the Adapter pattern to reuse {@link FishingBoat}.
*
*/
- 结构型设计模式
- 主要细节在于 : 适配器会持有一个因需求而被代理的对象,然后 代理 具体的细节,返回成需求的需要的细节,就使得被代理对象仍得以使用
