invoker.java

来自「这是学习java与设计模式一书时所必备的源代码。只有这样才能更加深刻的理解编程的」· Java 代码 · 共 21 行

package com.javapatterns.command.undoconcept;

public class Invoker
{
    public Invoker(Command command)
    {
        this.command = command;
    }

    public void action()
    {
		command.execute();
    }

    /**
     * @link aggregation
     * @directed 
     */
    private Command command;
}