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🎉 mediator pattern
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‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/README.md

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‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_1/Button.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_1;
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/**
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* @project: design-patterns
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* @description: 按钮类, 充当具体同事类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:51 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public class Button extends Component {
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public void update() {
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//System.out.println("点击添加信息按钮");
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}
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}

‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_1/Client.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_1;
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/**
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* @project: design-patterns
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* @description: 客户端测试类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:58 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public class Client {
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public static void main(String[] args) {
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//定义中介者对象
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ConcreteMediator mediator = new ConcreteMediator();
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//定义同事对象
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List list = new List();
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Button addButton = new Button();
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ComboBox comboBox = new ComboBox();
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TextBox userNameTextBox = new TextBox();
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//关联中介者
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list.setMediator(mediator);
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comboBox.setMediator(mediator);
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addButton.setMediator(mediator);
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userNameTextBox.setMediator(mediator);
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//初始化具体同事类
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mediator.list = list;
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mediator.comboBox = comboBox;
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mediator.addButton = addButton;
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mediator.userNameTextBox = userNameTextBox;
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//通过中介者进行通信
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addButton.changed(); //点击添加客户信息按钮
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list.changed(); //从列表框中选择客户
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comboBox.changed(); //从组合框中选择客户
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}
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}

‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_1/ComboBox.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_1;
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/**
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* @project: design-patterns
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* @description: 组合框类, 充当具体同事类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:55 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public class ComboBox extends Component {
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public void update() {
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System.out.println("组合框增加一项: 黄宇辉");
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}
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public void select() {
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System.out.println("组合框选中项: 黄浩然");
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}
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}

‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_1/Component.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_1;
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/**
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* @project: design-patterns
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* @description: 抽象组件类, 充当抽象同事类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:51 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public abstract class Component {
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protected Mediator mediator;
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public void setMediator(Mediator mediator) {
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this.mediator = mediator;
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}
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//转发调用
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public void changed() {
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mediator.componentChanged(this);
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}
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public abstract void update();
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}

‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_1/ConcreteMediator.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_1;
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/**
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* @project: design-patterns
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* @description: 具体中介者类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:50 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public class ConcreteMediator extends Mediator {
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//维持对各个同事对象的引用
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public List list;
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public Button addButton;
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public TextBox userNameTextBox;
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public ComboBox comboBox;
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//封装同事对象之间的交互
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@Override
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public void componentChanged(Component component) {
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//单击按钮
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if (component == addButton) {
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System.out.println("--- 点击增加信息按钮 ---");
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list.update();
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comboBox.update();
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userNameTextBox.update();
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}
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//从列表框选择客户
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else if (component == list) {
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System.out.println("\n--- 从列表框选择客户 ---");
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list.select();
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userNameTextBox.setText();
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}
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//从组合框选择客户
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else if (component == comboBox) {
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System.out.println("\n--- 从组合框选择客户 ---");
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comboBox.select();
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userNameTextBox.setText();
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}
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}
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}

‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_1/List.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_1;
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/**
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* @project: design-patterns
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* @description: 列表框类, 充当具体同事类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:52 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public class List extends Component {
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public void update() {
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System.out.println("列表框增加一项: 黄宇辉");
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}
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public void select() {
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System.out.println("列表框选中项: 黄浩然");
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}
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}

‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_1/Mediator.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_1;
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/**
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* @project: design-patterns
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* @description: 抽象中介者类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:49 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public abstract class Mediator {
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public abstract void componentChanged(Component component);
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}

‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_1/TextBox.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_1;
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/**
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* @project: design-patterns
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* @description: 文本框, 充当具体同事类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:56 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public class TextBox extends Component {
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public void update() {
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System.out.println("客户信息增加成功后文本框被清空");
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}
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public void setText() {
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System.out.println("文本框显示: 黄浩然");
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}
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}

‎design-patterns/src/main/java/pers/huangyuhui/mediator_pattern/mediator_pattern_2/Button.java

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package pers.huangyuhui.mediator_pattern.mediator_pattern_2;
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/**
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* @project: design-patterns
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* @description: 按钮类, 充当具体同事类
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* @author: 黄宇辉
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* @date: 10/10/2019-12:51 PM
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* @version: 1.0
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* @website: https://yubuntu0109.github.io/
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*/
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public class Button extends Component {
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public void update() {
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//System.out.println("点击增加信息按钮");
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}
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}

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