Android Open Source - AudioBook I Book Updates

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Java Source Code

/**
 *  This work is licensed under the Creative Commons Attribution-NonCommercial-
 *  NoDerivs 3.0 Unported License. To view a copy of this license, visit
 *  http://creativecommons.org/licenses/by-nc-nd/3.0/ or send a letter to 
 *  Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 
 *  94041, USA./*from   w  w w. j a  v a 2 s. c o  m*/
 * 
 *  Use of this work is permitted only in accordance with license rights granted.
 *  Materials provided "AS IS"; no representations or warranties provided.
 * 
 *  Copyright ? 2012 Marcus Parkkinen, Aki K?kel?, Fredrik ?hs.
 **/

package edu.chalmers.dat255.audiobookplayer.interfaces;

import edu.chalmers.dat255.audiobookplayer.model.Track;

/**
 * Used to assert that implementing classes can handle updates on Book
 * instances.
 * 
 * @author Aki K?kel?
 * @version 0.6
 * 
 */
public interface IBookUpdates extends ITrackUpdates {

  /**
   * Add a track to the list.
   * 
   * @param t
   *            Track to add.
   */
  void addTrack(Track t);

  /**
   * Removes a track from the collection on the specified index.
   * 
   * @param index
   *            Index of the track to remove.
   */
  void removeTrack(int index);

  /**
   * Swaps the position of two tracks in the list.
   * 
   * @param firstIndex
   *            First index to swap.
   * @param secondIndex
   *            Second index to swap.
   */
  void swapTracks(int firstIndex, int secondIndex);

  /**
   * Move a track from a given index to a given index. Indices inbetween will
   * be adjusted.
   * 
   * @param from
   *            Index to move from.
   * @param to
   *            Index to move to.
   */
  void moveTrack(int from, int to);

  /**
   * Sets the track index of the book. Can be set to "-1", which means
   * 'deselected.'
   * <p>
   * Must be set to integers greater than or equal to -1.
   * 
   * @param index
   *            Index to select.
   */
  void setSelectedTrackIndex(int index);

  /**
   * Sets the title of the book.
   * 
   * @param newTitle
   *            The new title to set.
   */
  void setSelectedBookTitle(String newTitle);

  /**
   * Gets the title of the book.
   * 
   * @return The title of the book.
   */
  String getSelectedBookTitle();

  /**
   * Returns the author of the selected book.
   * 
   * @return The author of the selected book.
   */
  String getSelectedBookAuthor();

  /**
   * Updates the duration of the book to the sum of the duration of its
   * tracks.
   */
  void updateSelectedBookDuration();

}

Java Source Code List