colleaguebutton.java

来自「<设计模式-Java语言中的应用> 的源码」· Java 代码 · 共 16 行

import java.awt.Button;

public class ColleagueButton extends Button implements Colleague {
    private Mediator mediator;
    public ColleagueButton(String caption) {
        super(caption);
    }
    public void setMediator(Mediator mediator) {            // 保留Mediator
        this.mediator = mediator;
    }
    public void setColleagueEnabled(boolean enabled) {      // Mediator指示有效／无效
        setEnabled(enabled);
    }
}