/* ==========================================
* 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.
*/
/* -------------------------
* UndirectedCycleBase.java
* -------------------------
* (C) Copyright 2013, by Nikolay Ognyanov
*
* Original Author: Nikolay Ognyanov
* Contributor(s) :
*
* $Id$
*
* Changes
* -------
* 06-Sep-2013 : Initial revision (NO);
*/
package org.jgrapht.alg.cycle;
import java.util.*;
import org.jgrapht.*;
/**
* A common interface for classes implementing algorithms for finding a cycle
* base of an undirected graph.
*
* @param <V> the vertex type.
* @param <E> the edge type.
*
* @author Nikolay Ognyanov
*/
public interface UndirectedCycleBase<V, E>
{
/**
* Returns the graph on which the cycle base search algorithm is executed by
* this object.
*
* @return The graph.
*/
UndirectedGraph<V, E> getGraph();
/**
* Sets the graph on which the cycle base search algorithm is executed by
* this object.
*
* @param graph the graph.
*
* @throws IllegalArgumentException if the argument is <code>null</code>.
*/
void setGraph(UndirectedGraph<V, E> graph);
/**
* Finds a cycle base of the graph.<br/>
* Note that the full algorithm is executed on every call since the graph
* may have changed between calls.
*
* @return A list of cycles constituting a cycle base for the graph.
* Possibly empty but never <code>null</code>.
*
* @throws IllegalArgumentException if the current graph is null.
*/
List<List<V>> findCycleBase();
}
// End UndirectedCycleBase.java