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Java > Open Source Codes > org > jgrapht > WeightedGraph


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  * WeightedGraph.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: WeightedGraph.java 504 2006-07-03 02:37:26Z perfecthash $
34  *
35  * Changes
36  * -------
37  * 24-Jul-2003 : Initial revision (BN);
38  * 13-Aug-2003 : Included weight methods in Edge interface (BN);
39  * 11-Mar-2004 : Made generic (CH);
40  *
41  */
42 package org.jgrapht;
43
44 /**
45  * An interface for a graph whose edges have non-uniform weights.
46  *
47  * @author Barak Naveh
48  * @since Jul 23, 2003
49  */
50 public interface WeightedGraph<V, E>
51     extends Graph<V, E>
52 {
53
54     //~ Static fields/initializers --------------------------------------------
55
56     /**
57      * The default weight for an edge.
58      */
59     public static double DEFAULT_EDGE_WEIGHT = 1.0;
60
61     //~ Methods ---------------------------------------------------------------
62
63     /**
64      * Assigns a weight to an edge.
65      *
66      * @param e edge on which to set weight
67      * @param weight new weight for edge
68      */
69     public void setEdgeWeight(E e, double weight);
70 }
71
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