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/* DefaultVertex.java
* =========================================================================
* This file is part of the GrInvIn project - http://www.grinvin.org
*
* Copyright (C) 2005-2008 Universiteit Gent
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program 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
* General Public License for more details.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.grinvin.graphs;
/**
* Default implementation of {@link Vertex}.
*/
public class DefaultVertex implements Vertex {
// IMPORTANT: hash codes of vertices should not depend on
// indices
//
int index;
/**
* Return the current index of this vertex. This index represents a sequence
* number in the set of vertices of the graph to which this vertex belongs.
* The index lies in the range 0..n-1, where n denotes the total number of vertices
* of the graph.<p>
* The index of a vertex may change when other vertices
* are removed from its parent graph. A vertex which is itself removed from its graph
* keeps its index.<p>
*/
public int getIndex() {
return this.index;
}
/**
* Create a new vertex with the given index.
*/
DefaultVertex(int index) {
super();
this.index = index;
}
public void setIndex(int index) {
this.index = index;
}
}
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