装饰模式

package com.java.decorator;

/**
 * 装饰模式
 */
public class DecoratorTest {
    public static void main(String[] args) {
        Person person = new Person("西欧阿飞");
        person.show();
        XiFu xiFu = new XiFu(person);
        System.out.println(xiFu.show() + " 去约会喽~");
    }
}

//抽象组件接口
interface Component {
    public String show();

}

/**
 * 具体构建对象
 */
class Person implements Component {
    private String name;

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

    public Person() {
    }

    public String getName() {
        return name;
    }

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

    @Override
    public String show() {
        return getName() + " 穿着";
    }

}

/**
 * 抽象装饰者
 */
abstract class Decorator extends Person {
    private Person person;

    // 没有提供无参构造器

    public Decorator(Person person) {
        this.person = person;
    }

    @Override
    public String show() {
        return person.show();
    }
}

/**
 * 具体装饰
 */
class XiFu extends Decorator {

    public XiFu(Person person) {
        super(person);
    }

    @Override
    public String show() {
        return super.show() + " 西服";
    }
}

class ChenShan extends Decorator {

    public ChenShan(Person person) {
        super(person);
    }

    @Override
    public String show() {
        return super.show() + " 衬衫";
    }

}