macroaudiocommand.java

来自「《Java与模式》一书的源代码」· Java 代码 · 共 38 行

package com.javapatterns.command.audioplayer2;

import java.util.Vector;

public class MacroAudioCommand implements MacroCommand
{
    private Vector commandList = new Vector();

    public void add(Command toAdd)
    {
        commandList.addElement(toAdd);
    }

    public void remove(int index)
    {
        commandList.remove(index);
    }

    public void remove(Command toRemove)
    {
        commandList.removeElement(toRemove);
    }

    public void execute()
    {
        Command nextCommand = null;

        System.out.println("Automated playback of stored commmands...");

        for (int i = 0; i < commandList.size(); i++)
        {
            nextCommand = (Command)commandList.elementAt(i);
            nextCommand.execute();
        }
        System.out.println("Finished automated playback of stored commmands.");
    }
}