| 1 | /* |
|---|---|
| 2 | * Copyright (C) 2007-2010 Júlio Vilmar Gesser. |
| 3 | * Copyright (C) 2011, 2013-2020 The JavaParser Team. |
| 4 | * |
| 5 | * This file is part of JavaParser. |
| 6 | * |
| 7 | * JavaParser can be used either under the terms of |
| 8 | * a) the GNU Lesser General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * b) the terms of the Apache License |
| 12 | * |
| 13 | * You should have received a copy of both licenses in LICENCE.LGPL and |
| 14 | * LICENCE.APACHE. Please refer to those files for details. |
| 15 | * |
| 16 | * JavaParser is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU Lesser General Public License for more details. |
| 20 | */ |
| 21 | |
| 22 | package com.github.javaparser.utils; |
| 23 | |
| 24 | import java.util.Objects; |
| 25 | |
| 26 | import static com.github.javaparser.utils.CodeGenerationUtils.f; |
| 27 | |
| 28 | /** |
| 29 | * Simply a pair of objects. |
| 30 | * |
| 31 | * @param <A> type of object a. |
| 32 | * @param <B> type of object b. |
| 33 | */ |
| 34 | public class Pair<A, B> { |
| 35 | public final A a; |
| 36 | public final B b; |
| 37 | |
| 38 | public Pair(A a, B b) { |
| 39 | this.a = a; |
| 40 | this.b = b; |
| 41 | } |
| 42 | |
| 43 | @Override |
| 44 | public boolean equals(Object o) { |
| 45 | if (this == o) return true; |
| 46 | if (o == null || getClass() != o.getClass()) return false; |
| 47 | |
| 48 | Pair<?, ?> pair = (Pair<?, ?>) o; |
| 49 | |
| 50 | if (!Objects.equals(a, pair.a)) return false; |
| 51 | if (!Objects.equals(b, pair.b)) return false; |
| 52 | |
| 53 | return true; |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public int hashCode() { |
| 58 | int result = a != null ? a.hashCode() : 0; |
| 59 | return 31 * result + (b != null ? b.hashCode() : 0); |
| 60 | } |
| 61 | |
| 62 | @Override |
| 63 | public String toString() { |
| 64 | return f("<%s, %s>", a, b); |
| 65 | } |
| 66 | } |
| 67 |
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