[디자인 패턴] 2 프록시 패턴(Proxy Pattern)

1. 프록시(Proxy Pattern) 패턴이란?

2. 프록시 패턴 적용하기

[디자인 패턴] 1 전략 패턴(Strategy Pattern) - {CODE-RYU};

java

https://inblog.ai/coderyu1/디자인-패턴-1-전략-패턴strategy-pattern-20780?traffic_type=internal

2.1 상속을 활용하기

package ex02;

public class DoormanProxy extends Doorman{

    public void 쫓아내(Animal animal){
        System.out.println("지갑 검사");
        super.쫓아내(animal);

    }
}

package ex02;

// 프록시 패턴
public class App {
    public static void main(String[] args) {
        Animal mouse = new Mouse();
        Animal tiger = new Tiger();
        DoormanProxy doorman = new DoormanProxy();
        doorman.쫓아내(mouse);
    }
}

2.2 생성자 활용하기

package ex02;


public class DoormanProxy {
    //final 이 있으면 null이 되면 안됨. 반드시 값이 있어야됨
    private final Doorman doorman ;

    public DoormanProxy(Doorman doorman) {
        this.doorman = doorman;
    }

    public void 쫓아내(Animal animal){
        System.out.println("지갑 검사");
        doorman.쫓아내(animal);
    }
}

package ex02;

// 프록시 패턴
public class App {
    public static void main(String[] args) {
        Animal mouse = new Mouse();
        Animal tiger = new Tiger();
        DoormanProxy doorman = new DoormanProxy(new Doorman());
        doorman2.쫓아내(mouse);
    }
}