package org.apidesign.samples;

 // BEGIN: xmms.java.api

 public class XMMS {

     public void play() { doPlay(); }

     public void pause() { doPause(); }

     public void addToPlaylist(String file) { doAddToPlaylist(file); }

 // FINISH: xmms.java.api

     // BEGIN: xmms.java.spi

     interface Playback {

         public void playback(byte[] data);

     }

     // END: xmms.java.spi

     public void registerPlayback(Playback callback) {

         this.callback = callback;

     }

     private Playback callback;

     private void doAddToPlaylist(String file) {

     }

     private void doPause() {

     }

     private void doPlay() {

         callback.playback("Play!".getBytes());

     }

     //

     // Usage

     // 

     public static void main(String[] args) {

         XMMS xmms = new XMMS();

         // BEGIN: xmms.java.use

         class MyCallbackPrints implements XMMS.Playback {

             public void playback(byte[] data) {

                 System.out.println(new String(data));

             }

         }

         xmms.registerPlayback(new MyCallbackPrints());

         // END: xmms.java.use

     }

 }