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Commit d3693e4

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author
deeper
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update decorator
1 parent fb7898f commit d3693e4

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7 files changed

+95
-0
lines changed

7 files changed

+95
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lines changed
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package com.ruoxu.pattern.decorator;
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public class Boy implements Person{
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@Override
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public void dressed() {
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System.out.println("boy:穿上内裤");
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}
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}
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package com.ruoxu.pattern.decorator;
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public class CheapClothDecorator extends ClothDecorator{
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public CheapClothDecorator(Person person) {
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super(person);
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}
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@Override
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public void dressed() {
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super.dressed();
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dressShorts();
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}
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private void dressShorts() {
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System.out.println("穿件短裤");
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}
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}
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package com.ruoxu.pattern.decorator;
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public abstract class ClothDecorator implements Person{
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private Person mPerson; // 保持一个Person类的引用
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public ClothDecorator(Person person) {
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this.mPerson = person;
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}
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@Override
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public void dressed() {
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mPerson.dressed();
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}
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}

‎src/com/ruoxu/pattern/decorator/Demo.java

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*/
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public class Demo {
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public static void main(String[] args) {
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Person boy = new Boy();
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ClothDecorator boyDecorator1 = new ExpensiveClothDecorator(boy);
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boyDecorator1.dressed();
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System.out.println();
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ClothDecorator boyDecorator2 = new CheapClothDecorator(boy);
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boyDecorator2.dressed();
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System.out.println();
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// Person girl = new Girl();
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// ClothDecorator girlDecorator = new ExpensiveClothDecorator(girl);
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// girlDecorator.dressed();
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}
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}
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package com.ruoxu.pattern.decorator;
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public class ExpensiveClothDecorator extends ClothDecorator{
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public ExpensiveClothDecorator(Person person) {
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super(person);
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}
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@Override
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public void dressed() {
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dressedJean();
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super.dressed(); // 位置可在前中后。
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dressShirt();
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}
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private void dressShirt() {
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System.out.println("穿件短袖");
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}
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private void dressedJean() {
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System.out.println("穿上牛仔裤");
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}
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}
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package com.ruoxu.pattern.decorator;
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public class Girl implements Person{
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@Override
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public void dressed() {
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System.out.println("girl:戴个胸罩");
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}
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}
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package com.ruoxu.pattern.decorator;
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public interface Person {
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void dressed();
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}

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