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Java > Open Source Codes > org > jgrapht > ListenableGraph


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  * ListenableGraph.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: ListenableGraph.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;
43
44 import org.jgrapht.event.*;
45
46
47 /**
48  * A graph that supports listeners on structural change events.
49  *
50  * @author Barak Naveh
51  * @see GraphListener
52  * @see VertexSetListener
53  * @since Jul 20, 2003
54  */
55 public interface ListenableGraph<V, E>
56     extends Graph<V, E>
57 {
58
59     //~ Methods ---------------------------------------------------------------
60
61     /**
62      * Adds the specified graph listener to this graph, if not already present.
63      *
64      * @param l the listener to be added.
65      */
66     public void addGraphListener(GraphListener<V, E> l);
67
68     /**
69      * Adds the specified vertex set listener to this graph, if not already
70      * present.
71      *
72      * @param l the listener to be added.
73      */
74     public void addVertexSetListener(VertexSetListener<V> l);
75
76     /**
77      * Removes the specified graph listener from this graph, if present.
78      *
79      * @param l the listener to be removed.
80      */
81     public void removeGraphListener(GraphListener<V, E> l);
82
83     /**
84      * Removes the specified vertex set listener from this graph, if present.
85      *
86      * @param l the listener to be removed.
87      */
88     public void removeVertexSetListener(VertexSetListener<V> l);
89 }
90
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