来源:http://www.bjsxt.com/
一、S03E245_01【GOF23设计模式】_中介者模式、同事协作类、内部类实现
package com.test.mediator;
/**
* 同事类的接口
*/
public interface Department {
void selfAction();//做本部门的事情
void outAction();//向总经理发出申请
}
package com.test.mediator;
public class Development implements Department{
private Mediator m;//持有中介者(总经理)的引用
public Development(Mediator m) {
super();
this.m = m;
m.register("development", this);
}
@Override
public void selfAction() {
System.out.println(getClass().getName()+"专心科研,开发项目!");
}
@Override
public void outAction() {
System.out.println(getClass().getName()+"汇报工作!没钱了,需要资金支持!");
}
}
package com.test.mediator;
public class Finacial implements Department{
private Mediator m;//持有中介者(总经理)的引用
public Finacial(Mediator m) {
super();
this.m = m;
m.register("finacial", this);
}
@Override
public void selfAction() {
System.out.println(getClass().getName()+"数钱!");
}
@Override
public void outAction() {
System.out.println(getClass().getName()+"汇报工作!没钱了,钱太多了!怎么花?");
}
}
package com.test.mediator;
public class Market implements Department{
private Mediator m;//持有中介者(总经理)的引用
public Market(Mediator m) {
super();
this.m = m;
m.register("market", this);
}
@Override
public void selfAction() {
System.out.println(getClass().getName()+"跑去接项目!");
}
@Override
public void outAction() {
System.out.println(getClass().getName()+"汇报工作!项目承接的进度,需要资金支持!");
m.command("finacial");
}
}
package com.test.mediator;
public interface Mediator {
void register(String dname,Department d);
void command(String dname);
}
package com.test.mediator;
import java.util.HashMap;
import java.util.Map;
public class President implements Mediator{
private Map<String, Department> map = new HashMap<String, Department>();
@Override
public void register(String dname, Department d) {
map.put(dname, d);
}
@Override
public void command(String dname) {
map.get(dname).selfAction();
}
}
package com.test.mediator;
public class Client {
public static void main(String[] args) {
Mediator m = new President();
Market market = new Market(m);
Development devp = new Development(m);
Finacial f = new Finacial(m);
market.selfAction();
market.outAction();
}
}
控制台输出:
com.test.mediator.Market跑去接项目!
com.test.mediator.Market汇报工作!项目承接的进度,需要资金支持!
com.test.mediator.Finacial数钱!