Triple.java

/*
  Triple.java

  (c) 2010-2011 Edward Swartz

  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 ejs.base.utils;

import java.io.Serializable;

/**
 * @author ejs
 *
 */
public class Triple<T, U, V> implements Comparable<Triple<T, U, V>>, Serializable {
	private static final long serialVersionUID = -7012934855659835891L;
	public T first;
	public U second;
	public V third;
	public Triple(T first, U second, V third) {
		this.first = first;
		this.second = second;
		this.third = third;
	}
	/* (non-Javadoc)
	 * @see java.lang.Object#toString()
	 */
	@Override
	public String toString() {
		return first +", " + second + ", " + third;
	}
	
	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((first == null) ? 0 : first.hashCode());
		result = prime * result + ((second == null) ? 0 : second.hashCode());
		result = prime * result + ((third == null) ? 0 : third.hashCode());
		return result;
	}
	@SuppressWarnings("unchecked")
	@Override
	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null) {
			return false;
		}
		if (getClass() != obj.getClass()) {
			return false;
		}
		Triple<T,U,V> other = (Triple<T,U,V>) obj;
		if (first == null) {
			if (other.first != null) {
				return false;
			}
		} else if (!first.equals(other.first)) {
			return false;
		}
		if (second == null) {
			if (other.second != null) {
				return false;
			}
		} else if (!second.equals(other.second)) {
			return false;
		}
		if (third == null) {
			if (other.third != null) {
				return false;
			}
		} else if (!third.equals(other.third)) {
			return false;
		}
		return true;
	}
	
	@SuppressWarnings("unchecked")
	public int compareTo(Triple<T, U, V> o) {
		int diff = ((Comparable<T>)first).compareTo(o.first);
		if (diff != 0)
			return diff;
		diff = ((Comparable<U>)second).compareTo(o.second);
		if (diff != 0)
			return diff;
		diff = ((Comparable<V>)third).compareTo(o.third);
		return diff;
	}

	
	
}