代理模式

为其他对象提供一种代理以控制对这个对象的访问.

package proxy;

/**
 * Created by hero on 17-2-17.
 */
public interface Policy {
    void giveFlowers();
    void giveTickets();
    void drinkMoreWater();
}

package proxy;

/**
 * Created by hero on 17-2-17.
 */
public class Pursuer implements Policy {
    private SchoolGirl girl;

    public Pursuer(SchoolGirl girl) {
        this.girl = girl;
    }

    public void giveFlowers() {
        System.out.println("give " + girl.getName() + " flowers.");
    }

    public void giveTickets() {
        System.out.println("give " + girl.getName() + " tickets.");
    }

    public void drinkMoreWater() {
        System.out.println("persuade " + girl.getName() + " drink more water.");
    }
}

package proxy;

/**
 * Created by hero on 17-2-17.
 */
public class Proxy implements Policy {
    private Pursuer pursuer;

    public Proxy(SchoolGirl girl) {
        this.pursuer = new Pursuer(girl); //school美眉与真正追求她的gg不认识.
    }

    public void giveFlowers() {
        pursuer.giveFlowers();
    }

    public void giveTickets() {
        pursuer.giveTickets();
    }

    public void drinkMoreWater() {
        pursuer.drinkMoreWater();
    }
}

package proxy;

/**
 * Created by hero on 17-2-17.
 */
public class SchoolGirl {
    private String name;

    public SchoolGirl(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

package proxy;

/**
 * Created by hero on 17-2-17.
 */
public class Main {
    public static void main(String[] args) {
        SchoolGirl lucy = new SchoolGirl("lucy");
        Proxy daili = new Proxy(lucy);

        daili.giveFlowers();
        daili.giveTickets();
        daili.drinkMoreWater();
    }
}