caretaker.java

来自「《Java与模式》一书的源代码」· Java 代码 · 共 17 行

package com.javapatterns.memento.whitebox;

public class Caretaker
{
    private Memento memento;

    public Memento retrieveMemento()
    {
        return this.memento;
    }

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