org.jgrapht.UndirectedGraph Maven / Gradle / Ivy
/* ==========================================
* JGraphT : a free Java graph-theory library
* ==========================================
*
* Project Info: http://jgrapht.sourceforge.net/
* Project Creator: Barak Naveh (http://sourceforge.net/users/barak_naveh)
*
* (C) Copyright 2003-2008, by Barak Naveh and Contributors.
*
* This program and the accompanying materials are dual-licensed under
* either
*
* (a) the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation, or (at your option) any
* later version.
*
* or (per the licensee's choosing)
*
* (b) the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation.
*/
/* --------------------
* UndirectedGraph.java
* --------------------
* (C) Copyright 2003-2008, by Barak Naveh and Contributors.
*
* Original Author: Barak Naveh
* Contributor(s): Christian Hammer
*
* $Id$
*
* Changes
* -------
* 24-Jul-2003 : Initial revision (BN);
* 11-Mar-2004 : Made generic (CH);
*
*/
package org.jgrapht;
/**
* A graph whose all edges are undirected. This is the root interface of all
* undirected graphs.
*
* See
* http://mathworld.wolfram.com/Graph.html for more on undirected and on
* directed graphs.
*
* @author Barak Naveh
* @since Jul 14, 2003
*/
public interface UndirectedGraph
extends Graph
{
/**
* Returns the degree of the specified vertex. A degree of a vertex in an
* undirected graph is the number of edges touching that vertex.
*
* @param vertex vertex whose degree is to be calculated.
*
* @return the degree of the specified vertex.
*/
public int degreeOf(V vertex);
}
// End UndirectedGraph.java