第二十四篇 设计模式--备忘录模式

package memento_model;
/**
*
* @author naivor
*		备忘录模式-场景类
*/
public class MementoModel {
public static void main(String[] args) {
Originator originator=new Originator();
Caretaker caretaker=new Caretaker();

caretaker.setMemento(originator.createMemento());  //备份originator

originator.setMemento(caretaker.getMemento());		//还原originator
}
}
/**
*
* @author naivor
*		备忘录模式-发起人类
*/
class Originator{
private int pro1;
private String pro2;

public int getPro1() {
return pro1;
}
public void setPro1(int pro1) {
this.pro1 = pro1;
}
public String getPro2() {
return pro2;
}
public void setPro2(String pro2) {
this.pro2 = pro2;
}

public Memento createMemento(){
return new Memento(pro1, pro2);
}

public void setMemento(Memento memento){
setPro1(memento.getPro1());
setPro2(memento.getPro2());
}
}
/**
*
* @author naivor
*  	备忘录模式-备忘录
*/
class Memento{
private int pro1;
private String pro2;

public Memento(int pro1, String pro2) {
this.pro1=pro1;
this.pro2=pro2;
}

public int getPro1() {
return pro1;
}

public void setPro1(int pro1) {
this.pro1 = pro1;
}

public String getPro2() {
return pro2;
}

public void setPro2(String pro2) {
this.pro2 = pro2;
}
}
/**
*
* @author naivor
*		备忘录模式-备忘录管理者
*/
class Caretaker{
private Memento memento;

public Memento getMemento() {
return memento;
}

public void setMemento(Memento memento) {
this.memento = memento;
}
}