1/*
2 *  Licensed to the Apache Software Foundation (ASF) under one or more
3 *  contributor license agreements.  See the NOTICE file distributed with
4 *  this work for additional information regarding copyright ownership.
5 *  The ASF licenses this file to You under the Apache License, Version 2.0
6 *  (the "License"); you may not use this file except in compliance with
7 *  the License.  You may obtain a copy of the License at
8 *
9 *     http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *  Unless required by applicable law or agreed to in writing, software
12 *  distributed under the License is distributed on an "AS IS" BASIS,
13 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *  See the License for the specific language governing permissions and
15 *  limitations under the License.
16 */
17
18package java.util;
19
20/**
21 * MapEntry is an internal class which provides an implementation of Map.Entry.
22 */
23class MapEntry<K, V> implements Map.Entry<K, V>, Cloneable {
24
25    K key;
26    V value;
27
28    interface Type<RT, KT, VT> {
29        RT get(MapEntry<KT, VT> entry);
30    }
31
32    MapEntry(K theKey) {
33        key = theKey;
34    }
35
36    MapEntry(K theKey, V theValue) {
37        key = theKey;
38        value = theValue;
39    }
40
41    @Override
42    public Object clone() {
43        try {
44            return super.clone();
45        } catch (CloneNotSupportedException e) {
46            throw new AssertionError(e); // android-changed
47        }
48    }
49
50    @Override
51    public boolean equals(Object object) {
52        if (this == object) {
53            return true;
54        }
55        if (object instanceof Map.Entry) {
56            Map.Entry<?, ?> entry = (Map.Entry<?, ?>) object;
57            return (key == null ? entry.getKey() == null : key.equals(entry
58                    .getKey()))
59                    && (value == null ? entry.getValue() == null : value
60                            .equals(entry.getValue()));
61        }
62        return false;
63    }
64
65    public K getKey() {
66        return key;
67    }
68
69    public V getValue() {
70        return value;
71    }
72
73    @Override
74    public int hashCode() {
75        return (key == null ? 0 : key.hashCode())
76                ^ (value == null ? 0 : value.hashCode());
77    }
78
79    public V setValue(V object) {
80        V result = value;
81        value = object;
82        return result;
83    }
84
85    @Override
86    public String toString() {
87        return key + "=" + value;
88    }
89}
90