装饰模式（Decorator）

GitHub地址

https://github.com/YEN-GitHub/PatternDemo/tree/master/src/StructuralPattern/DecoratorPattern

装饰模式概述

Provide a surrogate or placeholder for another object to control access to it.
为其他对象提供一种代理以控制对这个对象的访问。

题目

请用装饰模式（Decorator）为某游戏角色设计换装功能，具体描述如下：
现阶段游戏包含人类（Human）和兽人（Orc）两种角色（Charactor），在将来可能会增加新角色。
现阶段服装(Finery)包含T恤(TShirt)，牛仔裤(Jean)，运动鞋(Sneaker)，西装(Suit)，领带(Tie)，皮鞋(LeatherShoe)六种，在将来可能会增加新的服装，并且角色服装可以依据用户喜爱自由穿戴。
并搭配出：
绅士风的人类（西装，领带，皮鞋）；
休闲风的兽人（T恤，牛仔裤，运动鞋）；
混搭风的兽人（西装，领带，牛仔裤，运动鞋）。
题目中角色和服装只需要通过输出语句表示即可，比如：混搭风的兽人（西装，领带，牛仔裤，运动鞋），将输出“运动鞋 牛仔裤 领带 西装 装扮的兽人XXX(名字)”。

UML类图

代码

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 12:59 * Abstract：角色 */public class Charactor {    public void show(){    }}

package StructuralPattern.DecoratorPattern.demo1;import StructuralPattern.DecoratorPattern.demo1.Charactor;/** * Created by yangenneng on 2017-05-03 12:59 * Abstract：人类 */public class Human extends Charactor {    private String name;    public Human(String name){        this.name=name;    }    public void show(){        System.out.println("--人类:"+name);    }}

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 12:59 * Abstract：兽人 */public class Orc extends Charactor {    private String name;    public Orc(String name){        this.name=name;    }    public void show(){        System.out.println("--兽人:"+name);    }}

package StructuralPattern.DecoratorPattern.demo1;import StructuralPattern.DecoratorPattern.demo1.Charactor;/** * Created by yangenneng on 2017-05-03 13:00 * Abstract：服装 */public class Finery extends Charactor {    protected Charactor charactor;    public Finery(Charactor charactor){        this.charactor=charactor;    }    public void show(){        this.charactor.show();    }}

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 13:02 * Abstract：T恤 */public class TShirt extends Finery {    public TShirt(Charactor charactor) {        super(charactor);    }    public Charactor decorator(Charactor charactor){        this.charactor=charactor;        return charactor;    }    public void show(){        System.out.print("T恤 ");        super.show();    }}

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 13:03 * Abstract：领带 */public class Tie extends Finery {    public Tie(Charactor charactor) {        super(charactor);    }    public Charactor decorator(Charactor charactor){        this.charactor=charactor;        return this.charactor;    }    public void show(){        System.out.print("领带 ");        super.show();    }}

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 13:03 * Abstract：西装 */public class Suit extends Finery {    public Suit(Charactor charactor) {        super(charactor);    }    public Charactor decorator(Charactor charactor){        this.charactor=charactor;        return charactor;    }    public void show(){        System.out.print("西装 ");        super.show();    }}

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 13:03 * Abstract：运动鞋 */public class Sneaker extends Finery {    public Sneaker(Charactor charactor) {        super(charactor);    }    public Charactor decorator(Charactor charactor){        this.charactor=charactor;        return charactor;    }    public void show(){        System.out.print("运动鞋 ");        super.show();    }}

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 13:03 * Abstract：皮鞋 */public class LeatherShoe extends Finery {    public LeatherShoe(Charactor charactor) {        super(charactor);    }    public Charactor decorator(Charactor charactor){        this.charactor=charactor;        return charactor;    }    public void show(){        System.out.print("皮鞋 ");        super.show();    }}

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 13:02 * Abstract：牛仔裤 */public class Jean extends Finery {    public Jean(Charactor charactor) {        super(charactor);    }    public Charactor decorator(Charactor charactor){        this.charactor=charactor;        return charactor;    }    public void show(){        System.out.print("牛仔裤 ");        super.show();    }}

package StructuralPattern.DecoratorPattern.demo1;/** * Created by yangenneng on 2017-05-03 13:02 * Abstract：客户端测试 */public class Client {    public static void main(String[] args) {        //人类        Human human=new Human("绅士风");        Orc orc1=new Orc("休闲风");        Orc orc2=new Orc("混搭风");        //装饰服饰        //绅士风的人类（西装，领带，皮鞋）        Suit suit=new Suit(human);//西装        Tie tie=new Tie(suit);//领带        LeatherShoe leatherShoe=new LeatherShoe(tie);//皮鞋        leatherShoe.show();        //休闲风的兽人（T恤，牛仔裤，运动鞋）        TShirt tShirt1=new TShirt(orc1);        Jean jean1=new Jean(tShirt1);        Sneaker sneaker1=new Sneaker(jean1);        sneaker1.show();        //混搭风的兽人（西装，领带，牛仔裤，运动鞋）        Suit suit2=new Suit(orc2);        Tie tie2=new Tie(suit2);        Sneaker sneaker2=new Sneaker(tie2);        sneaker2.show();    }}

运行结果