1   /**
2    * Distribution License:
3    * JSword is free software; you can redistribute it and/or modify it under
4    * the terms of the GNU Lesser General Public License, version 2.1 as published by
5    * the Free Software Foundation. This program is distributed in the hope
6    * that it will be useful, but WITHOUT ANY WARRANTY; without even the
7    * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
8    * See the GNU Lesser General Public License for more details.
9    *
10   * The License is available on the internet at:
11   *       http://www.gnu.org/copyleft/lgpl.html
12   * or by writing to:
13   *      Free Software Foundation, Inc.
14   *      59 Temple Place - Suite 330
15   *      Boston, MA 02111-1307, USA
16   *
17   * Copyright: 2005
18   *     The copyright to this program is held by it's authors.
19   *
20   * ID: $Id: BookComparators.java 2050 2010-12-09 15:31:45Z dmsmith $
21   */
22  package org.crosswire.jsword.book;
23  
24  import java.util.Comparator;
25  
26  import org.crosswire.common.util.Logger;
27  
28  /**
29   * Provides different ways to sort Books.
30   * 
31   * @see gnu.lgpl.License for license details.<br>
32   *      The copyright to this program is held by it's authors.
33   * @author DM Smith [dmsmith555 at yahoo dot com]
34   */
35  public final class BookComparators {
36      /**
37       * Ensure we can't be created
38       */
39      private BookComparators() {
40      }
41  
42      /**
43       * Order by default Book ordering
44       */
45      public static Comparator<Book> getDefault() {
46          return new Comparator<Book>() {
47              public int compare(Book o1, Book o2) {
48                  return o1.compareTo(o2);
49              }
50          };
51      }
52  
53      /**
54       * Order by Initials.
55       */
56      public static Comparator<Book> getInitialComparator() {
57          return new Comparator<Book>() {
58              public int compare(Book o1, Book o2) {
59                  return o1.getInitials().compareTo(o2.getInitials());
60              }
61          };
62      }
63  
64      /**
65       * The log stream
66       */
67      static final Logger log = Logger.getLogger(BookComparators.class);
68  }
69