Triple.java

/*
 * Copyright 2012 LinkedIn Corp.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package azkaban.utils;

/**
 * Like pair, but with 3 values.
 */
public class Triple<F, S, T> {
	private final F first;
	private final S second;
	private final T third;
	
	public Triple(F first, S second, T third) {
		this.first = first;
		this.second = second;
		this.third = third;
	}
	
	public F getFirst() {
		return first;
	}
	
	public S getSecond() {
		return second;
	}
	
	public T getThird() {
		return 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;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		@SuppressWarnings("rawtypes")
		Triple other = (Triple) 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;
	}
	
}