/* ==========================================
 * JGraphT : a free Java graph-theory library
 * ==========================================
 *
 * Project Info:  http://jgrapht.sourceforge.net/
 * Project Lead:  Barak Naveh (http://sourceforge.net/users/barak_naveh)
 *
 * (C) Copyright 2003-2004, by Barak Naveh and Contributors.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 */
/* ---------------
 * Multigraph.java
 * ---------------
 * (C) Copyright 2003, by Barak Naveh and Contributors.
 *
 * Original Author:  Barak Naveh
 * Contributor(s):   -
 *
 * $Id: Multigraph.java,v 1.2 2004/11/19 10:04:07 barak_naveh Exp $
 *
 * Changes
 * -------
 * 05-Aug-2003 : Initial revision (BN);
 *
 */
package org._3pq.jgrapht.graph;

import org._3pq.jgrapht.EdgeFactory;
import org._3pq.jgrapht.UndirectedGraph;
import org._3pq.jgrapht.edge.EdgeFactories;

/**
 * A multigraph. A multigraph is a non-simple undirected graph in which no
 * loops are permitted, but multiple edges between any two vertices are. If
 * you're unsure about multigraphs, see: <a
 * href="http://mathworld.wolfram.com/Multigraph.html">
 * http://mathworld.wolfram.com/Multigraph.html</a>.
 */
public class Multigraph extends AbstractBaseGraph implements UndirectedGraph {
    private static final long serialVersionUID = 3257001055819871795L;

    /**
     * Creates a new multigraph.
     */
    public Multigraph(  ) {
        this( new EdgeFactories.UndirectedEdgeFactory(  ) );
    }


    /**
     * Creates a new multigraph with the specified edge factory.
     *
     * @param ef the edge factory of the new graph.
     */
    public Multigraph( EdgeFactory ef ) {
        super( ef, true, false );
    }
}