| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.test.lib.util; |
| |
| import java.util.Objects; |
| |
| /** |
| * Pair - a two element tuple |
| * |
| * @param <F> first type |
| * @param <S> second type |
| */ |
| public class Pair<F, S> { |
| public final F first; |
| public final S second; |
| |
| public Pair(F first, S second) { |
| this.first = first; |
| this.second = second; |
| } |
| |
| @Override |
| public String toString() { |
| return "(" + first + ":" + second + ")"; |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (other instanceof Pair<?, ?>) { |
| Pair<?, ?> otherPair = (Pair<?, ?>) other; |
| return Objects.equals(first, otherPair.first) && |
| Objects.equals(second, otherPair.second); |
| } |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| if (first == null) { |
| return (second == null) ? 0 : second.hashCode(); |
| } else if (second == null) { |
| return first.hashCode(); |
| } else { |
| return first.hashCode() * 17 + second.hashCode(); |
| } |
| } |
| } |