org.jgrapht.graph.IntrusiveEdge Maven / Gradle / Ivy
/*
* (C) Copyright 2006-2020, 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;
import java.io.*;
/**
* IntrusiveEdge encapsulates the internals for the default edge implementation. It is not intended
* to be referenced directly (which is why it's not public); use DefaultEdge for that.
*
* @author John V. Sichi
*/
class IntrusiveEdge
implements
Cloneable,
Serializable
{
private static final long serialVersionUID = 3258408452177932855L;
Object source;
Object target;
/**
* @see Object#clone()
*/
@Override
public Object clone()
{
try {
return super.clone();
} catch (CloneNotSupportedException e) {
// shouldn't happen as we are Cloneable
throw new InternalError();
}
}
}