/* Copyright 2013 The jeo project. All rights reserved. * * 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 io.jeo.util; /** * Tuple utility class. * * @author Justin Deoliveira, OpenGeo */ public class Pair<F,S> { public final F first; public final S second; /** * Creates a new pair. */ public static <F, S> Pair<F,S> of(F first, S second) { return new Pair<F,S>(first, second); } public Pair(F first, S second) { this.first = first; this.second = second; } @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()); return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; Pair other = (Pair) 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; return true; } @Override public String toString() { return new StringBuilder().append("(") .append(first).append(",").append(second).append(")").toString(); } }