/*
 * Copyright (C) 2008-2015 by Holger Arndt
 *
 * This file is part of the Universal Java Matrix Package (UJMP).
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership and licensing.
 *
 * UJMP 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
 * of the License, or (at your option) any later version.
 *
 * UJMP 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 UJMP; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

package org.ujmp.jung;

import org.ujmp.core.Coordinates;

public class EdgeWrapper<E> {

	private final E edge;
	private final Coordinates coordinates;

	public EdgeWrapper(long parentIndex, long childIndex, E edge) {
		this(Coordinates.wrap(parentIndex, childIndex), edge);
	}

	public EdgeWrapper(Coordinates coordinates, E edge) {
		this.edge = edge;
		this.coordinates = coordinates;
	}

	public E getEdge() {
		return edge;
	}

	public Coordinates getCoordinates() {
		return coordinates;
	}

	public int hashCode() {
		return coordinates.hashCode();
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		EdgeWrapper other = (EdgeWrapper) obj;
		if (coordinates == null) {
			if (other.coordinates != null)
				return false;
		} else if (!coordinates.equals(other.coordinates))
			return false;
		return true;
	}

	public String toString() {
		return String.valueOf(edge);
	}
}