Pair.java

/*******************************************************************************
 * Breakout Cave Survey Visualizer
 *
 * Copyright (C) 2014 James Edwards
 *
 * jedwards8 at fastmail dot fm
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *******************************************************************************/
package org.andork.util;

public final class Pair<K, V> {
	private K key;

	private V value;

	public Pair(K key, V value) {
		this.key = key;
		this.value = value;
	}

	@Override
	public boolean equals(Object o) {
		if (o instanceof Pair) {
			Pair p = (Pair) o;
			return key.equals(p.key) && value.equals(p.value);
		}
		return false;
	}

	public K getKey() {
		return key;
	}

	public V getValue() {
		return value;
	}

	@Override
	public int hashCode() {
		return key.hashCode() * 31 ^ value.hashCode();
	}

	@Override
	public String toString() {
		return "(" + key + ", " + value + ")";
	}
}