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/*******************************************************************************
 * Copyright (c) 2003, 2010 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.draw2d.graph;

/**
 * @author hudsonr
 * @since 2.1
 */
class NodePair {

	public Node n1;
	public Node n2;

	public NodePair() {
	}

	public NodePair(Node n1, Node n2) {
		this.n1 = n1;
		this.n2 = n2;
	}

	public boolean equals(Object obj) {
		if (obj instanceof NodePair) {
			NodePair np = (NodePair) obj;
			return np.n1 == n1 && np.n2 == n2;
		}
		return false;
	}

	public int hashCode() {
		return n1.hashCode() ^ n2.hashCode();
	}

	/**
	 * @see java.lang.Object#toString()
	 */
	public String toString() {
		return "[" + n1 + ", " + n2 + "]"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	}

}