originator.java

来自「《JAVA与模式》附书中源代码」· Java 代码 · 共 32 行

package com.javapatterns.memento.whiteboxenhanced;

public class Originator
{
    private String state;

    /** @link dependency 
     * @label wide*/
    /*#Memento lnkMemento;*/

    public Memento createMemento()
    {
        return new Memento(state);
    }

    public void restoreMemento(Memento memento)
    {
        this.state = memento.getState();
    }

    public String getState()
    {
        return this.state;
    }

    public void setState(String state)
    {
        this.state = state;
        System.out.println("Current state = " + this.state);
    }
}