org.eclipse.xtext.util.Triple Maven / Gradle / Ivy

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/*******************************************************************************
 * Copyright (c) 2008 itemis AG (http://www.itemis.eu) 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
 *
 *******************************************************************************/
package org.eclipse.xtext.util;

/**
 * @author Sven Efftinge - Initial contribution and API
 *
 * @param 
 * @param 
 * @param 
 */
public final class Triple extends Pair{
	
	private final S3 third;
	
	Triple(final S1 first, final S2 second, final S3 third) {
		super(first,second);
		this.third = third;
	}
	
	public S3 getThird() {
		return third;
	}
	
	@Override
	public boolean equals(Object other) {
		if (other == null)
			return false;
		if (other == this)
			return true;
		if (other instanceof Triple) {
			Triple r = (Triple) other;
			if (!super.equals(other))
				return false;
			return third==null?r.getThird()==null : third.equals(r.getThird());
		}
		return false;
	}
	
	@Override
	public int hashCode() {
		return super.hashCode()+ 17*(third==null?0:getThird().hashCode());
	}
	
	@Override
	public String toString() {
		return "Triple("+getFirst()+","+getSecond()+","+getThird()+")";
	}
	
}