设计模式-装饰设计模式

public class WrapperTest {
    public static void main(String[] args) {
        /**
         拍照
         */
//        Componnet conCreateComponnet = new ConCreateComponnet();
//        conCreateComponnet.operation();

        /**
         添加美颜
         拍照
         */
//        Componnet decorator = new ConDecorator1(new ConCreateComponnet());
//        decorator.operation();

        /**
         添加滤镜
         添加美颜
         拍照
         */
        Componnet decorator = new ConDecorator2(new ConDecorator1(new ConCreateComponnet()));
        decorator.operation();
    }
}

interface Componnet {
    void operation();
}

class ConCreateComponnet implements Componnet {
    @Override
    public void operation() {
        System.out.println("拍照");
    }
}


abstract class Decorator implements Componnet {
    protected Componnet componnet;
    public Decorator(Componnet componnet) {
        this.componnet = componnet;
    }
}

class ConDecorator1 extends Decorator {
    public ConDecorator1(Componnet componnet) {
        super(componnet);
    }

    @Override
    public void operation() {
        System.out.println("添加美颜");
        componnet.operation();
    }
}

class ConDecorator2 extends ConDecorator1 {
    public ConDecorator2(Componnet componnet) {
        super(componnet);
    }

    @Override
    public void operation() {
        System.out.println("添加滤镜");
        componnet.operation();
    }
}