Java-马士兵设计模式学习笔记-观察者模式-OOD 封装event

把小孩醒来时的具体情况封装成事件类

Test.java

 

class WakenUpEvent{

	

	private long time;

	private String location;

	private Child source;

	

	public WakenUpEvent(long time, String location, Child source) {

		super();

		this.time = time;

		this.location = location;

		this.source = source;

	}



	public long getTime() {

		return time;

	}



	public void setTime(long time) {

		this.time = time;

	}



	public String getLocation() {

		return location;

	}



	public void setLocation(String location) {

		this.location = location;

	}



	public Child getSource() {

		return source;

	}



	public void setSource(Child source) {

		this.source = source;

	}

	

	

}



class Child implements Runnable {

	

	private Dad dad;

	

	public Child(Dad dad) {

		this.dad = dad;

	}



	public void wakeUp(){

		dad.actionToWakenUp(new WakenUpEvent(System.currentTimeMillis(), "bed", this));

	}



	@Override

	public void run() {

		try {

			Thread.sleep(3000);

		} catch (Exception e) {

			e.printStackTrace();

		}

		wakeUp();

	}

}



class Dad {



	public void actionToWakenUp(WakenUpEvent e) {

		System.out.println(e.getTime());

		System.out.println(e.getLocation());

		System.out.println(e.getSource());

		System.out.println("Fedd the child");

	}

	

}



public class Test {



	public static void main(String[] args) {

		Dad d = new Dad();

		Child c = new Child(d);

		new Thread(c).start();

	}

}

 

　　

运行结果：