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 or later
5    * as published by the Free Software Foundation. This program is distributed
6    * in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
7    * the 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   */
21  package org.crosswire.jsword.book;
22  
23  import java.io.IOException;
24  import java.io.ObjectInputStream;
25  import java.util.EventObject;
26  
27  /**
28   * A BooksEvent is fired whenever a Bible is added or removed from the system.
29   * 
30   * @see gnu.lgpl.License for license details.<br>
31   *      The copyright to this program is held by it's authors.
32   * @author Joe Walker [joe at eireneh dot com]
33   */
34  public class BooksEvent extends EventObject {
35      /**
36       * Basic constructor
37       * 
38       * @param book
39       *            The book of the changed Bible, or null if there is more than
40       *            one change.
41       * @param added
42       *            True if the changed Bible is an addition.
43       */
44      public BooksEvent(Object source, Book book, boolean added) {
45          super(source);
46  
47          this.book = book;
48          this.added = added;
49      }
50  
51      /**
52       * Get the name of the changed Book
53       * 
54       * @return The Book
55       */
56      public Book getBook() {
57          return book;
58      }
59  
60      /**
61       * Is this an addition event?
62       */
63      public boolean isAddition() {
64          return added;
65      }
66  
67      /**
68       * Serialization support.
69       * 
70       * @param is
71       * @throws IOException
72       * @throws ClassNotFoundException
73       */
74      private void readObject(ObjectInputStream is) throws IOException, ClassNotFoundException {
75          // Broken but we don't serialize events
76          book = null;
77          is.defaultReadObject();
78      }
79  
80      /**
81       * Is this an addition event?
82       */
83      private boolean added;
84  
85      /**
86       * The name of the changed Bible
87       */
88      private transient Book book;
89  
90      /**
91       * Serialization ID
92       */
93      private static final long serialVersionUID = 3834876879554819894L;
94  }
95