Playlist.java

package com.kure.musicplayer.model;

import java.util.ArrayList;

public class Playlist {

	private long id;
	private String name;

	private ArrayList<Long> songs = new ArrayList<Long>();

	public Playlist(long id, String name) {
		this.id = id;
		this.name = name;
	}

	public long getID() {
		return id;
	}

	public String getName() {
		return name;
	}

	/**
	 * Inserts a song on this Playlist.
	 *
	 * @param id Global song id.
	 */
	public void add(long id) {
		if (! songs.contains(id))
			songs.add(id);
	}

	/**
	 * Returns a list with all the songs inside this Playlist.
	 * @return
	 */
	public ArrayList<Long> getSongIds() {
		ArrayList<Long> list = new ArrayList<Long>();

		for (Long songID : songs)
			list.add(songID);

		return list;
	}
}