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Java > Open Source Codes > org > jgrapht > event > GraphListener


1 /* ==========================================
2  * JGraphT : a free Java graph-theory library
3  * ==========================================
4  *
5  * Project Info: http://jgrapht.sourceforge.net/
6  * Project Creator: Barak Naveh (http://sourceforge.net/users/barak_naveh)
7  *
8  * (C) Copyright 2003-2006, by Barak Naveh and Contributors.
9  *
10  * This library is free software; you can redistribute it and/or modify it
11  * under the terms of the GNU Lesser General Public License as published by
12  * the Free Software Foundation; either version 2.1 of the License, or
13  * (at your option) any later version.
14  *
15  * This library is distributed in the hope that it will be useful, but
16  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
17  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
18  * License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public License
21  * along with this library; if not, write to the Free Software Foundation,
22  * Inc.,
23  * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
24  */
25 /* ------------------
26  * GraphListener.java
27  * ------------------
28  * (C) Copyright 2003-2006, by Barak Naveh and Contributors.
29  *
30  * Original Author: Barak Naveh
31  * Contributor(s): Christian Hammer
32  *
33  * $Id: GraphListener.java 504 2006-07-03 02:37:26Z perfecthash $
34  *
35  * Changes
36  * -------
37  * 24-Jul-2003 : Initial revision (BN);
38  * 10-Aug-2003 : Adaptation to new event model (BN);
39  * 11-Mar-2004 : Made generic (CH);
40  *
41  */
42 package org.jgrapht.event;
43
44 /**
45  * A listener that is notified when the graph changes.
46  *
47  * <p>If only notifications on vertex set changes are required it is more
48  * efficient to use the VertexSetListener.</p>
49  *
50  * @author Barak Naveh
51  * @see VertexSetListener
52  * @since Jul 18, 2003
53  */
54 public interface GraphListener<V, E>
55     extends VertexSetListener<V>
56 {
57
58     //~ Methods ---------------------------------------------------------------
59
60     /**
61      * Notifies that an edge has been added to the graph.
62      *
63      * @param e the edge event.
64      */
65     public void edgeAdded(GraphEdgeChangeEvent<V, E> e);
66
67     /**
68      * Notifies that an edge has been removed from the graph.
69      *
70      * @param e the edge event.
71      */
72     public void edgeRemoved(GraphEdgeChangeEvent<V, E> e);
73 }
74
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