org.jgrapht.graph.DefaultWeightedEdge Maven / Gradle / Ivy
/*
* (C) Copyright 2006-2021, by John V Sichi and Contributors.
*
* JGraphT : a free Java graph-theory library
*
* See the CONTRIBUTORS.md file distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0, or the
* GNU Lesser General Public License v2.1 or later
* which is available at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1-standalone.html.
*
* SPDX-License-Identifier: EPL-2.0 OR LGPL-2.1-or-later
*/
package org.jgrapht.graph;
/**
* A default implementation for edges in a weighted graph. All access to the weight of an edge must
* go through the graph interface, which is why this class doesn't expose any public methods.
*
* @author John V. Sichi
*/
public class DefaultWeightedEdge
extends
IntrusiveWeightedEdge
{
private static final long serialVersionUID = -3259071493169286685L;
/**
* Retrieves the source of this edge. This is protected, for use by subclasses only (e.g. for
* implementing toString).
*
* @return source of this edge
*/
protected Object getSource()
{
return source;
}
/**
* Retrieves the target of this edge. This is protected, for use by subclasses only (e.g. for
* implementing toString).
*
* @return target of this edge
*/
protected Object getTarget()
{
return target;
}
/**
* Retrieves the weight of this edge. This is protected, for use by subclasses only (e.g. for
* implementing toString).
*
* @return weight of this edge
*/
protected double getWeight()
{
return weight;
}
@Override
public String toString()
{
return "(" + source + " : " + target + ")";
}
}