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Package: TypeSafeHashMultiMap
TypeSafeHashMultiMap
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| TypeSafeHashMultiMap(Map) |
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| TypeSafeHashMultiMap(Map, boolean) |
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| asMap() |
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| containsKey(Key) |
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| entrySet() |
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| forEach(BiConsumer) |
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| get(Key) |
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| iterator() |
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| keySet() |
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| size() |
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| toString() |
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| values() |
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| with(Key, Object) |
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Coverage
1: /*
2: * *************************************************************************************************************************************************************
3: *
4: * TheseFoolishThings: Miscellaneous utilities
5: * http://tidalwave.it/projects/thesefoolishthings
6: *
7: * Copyright (C) 2009 - 2025 by Tidalwave s.a.s. (http://tidalwave.it)
8: *
9: * *************************************************************************************************************************************************************
10: *
11: * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
12: * You may obtain a copy of the License at
13: *
14: * http://www.apache.org/licenses/LICENSE-2.0
15: *
16: * 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
17: * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
18: *
19: * *************************************************************************************************************************************************************
20: *
21: * git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
22: * git clone https://github.com/tidalwave-it/thesefoolishthings-src
23: *
24: * *************************************************************************************************************************************************************
25: */
26: package it.tidalwave.util.impl;
27:
28: // import javax.annotation.Nonnegative;
29: // import javax.annotation.concurrent.Immutable;
30: import jakarta.annotation.Nonnull;
31: import java.util.ArrayList;
32: import java.util.Collection;
33: import java.util.HashMap;
34: import java.util.Iterator;
35: import java.util.Map;
36: import java.util.Set;
37: import java.util.concurrent.CopyOnWriteArrayList;
38: import java.util.concurrent.CopyOnWriteArraySet;
39: import java.util.function.BiConsumer;
40: import java.io.Serializable;
41: import it.tidalwave.util.Key;
42: import it.tidalwave.util.TypeSafeMultiMap;
43: import lombok.EqualsAndHashCode;
44:
45: /***************************************************************************************************************************************************************
46: *
47: * @author Fabrizio Giudici
48: *
49: **************************************************************************************************************************************************************/
50: /* @Immutable */ @EqualsAndHashCode
51: public class TypeSafeHashMultiMap implements TypeSafeMultiMap, Serializable
52: {
53: private static final long serialVersionUID = 759233572056L;
54:
55: @Nonnull
56: private final Map<Key<?>, Collection<?>> map;
57:
58: /***********************************************************************************************************************************************************
59: * Creates a new instance from the given contents.
60: *
61: * @param map the contents
62: **********************************************************************************************************************************************************/
63: public TypeSafeHashMultiMap (@Nonnull final Map<? extends Key<?>, ? extends Collection<?>> map)
64: {
65: this(new HashMap<>(), true);
66: this.map.putAll(map);
67: }
68:
69: /***********************************************************************************************************************************************************
70: **********************************************************************************************************************************************************/
71: /* package */ TypeSafeHashMultiMap (@Nonnull final Map<Key<?>, Collection<?>> map, final boolean ignored)
72: {
73: this.map = map;
74: }
75:
76: /***********************************************************************************************************************************************************
77: * {@inheritDoc}
78: **********************************************************************************************************************************************************/
79: @Override @Nonnull @SuppressWarnings("unchecked")
80: public <T> Collection<T> get (@Nonnull final Key<T> key)
81: {
82:• return containsKey(key) ? new CopyOnWriteArrayList<>((Collection<T>)map.get(key))
83: : new ArrayList<>();
84: }
85:
86: /***********************************************************************************************************************************************************
87: * {@inheritDoc}
88: **********************************************************************************************************************************************************/
89: @Override
90: public boolean containsKey (@Nonnull final Key<?> key)
91: {
92: return map.containsKey(key);
93: }
94:
95: /***********************************************************************************************************************************************************
96: * {@inheritDoc}
97: **********************************************************************************************************************************************************/
98: @Override @Nonnull
99: public <T> TypeSafeHashMultiMap with (@Nonnull final Key<T> key, @Nonnull final T value)
100: {
101: final var map = asMap();
102: final var values = get(key);
103: values.add(value);
104: map.put(key, values);
105: return new TypeSafeHashMultiMap(map);
106: }
107:
108: /***********************************************************************************************************************************************************
109: * {@inheritDoc}
110: **********************************************************************************************************************************************************/
111: @Override @Nonnull
112: public Set<Key<?>> keySet()
113: {
114: return new CopyOnWriteArraySet<>(map.keySet());
115: }
116:
117: /***********************************************************************************************************************************************************
118: * {@inheritDoc}
119: **********************************************************************************************************************************************************/
120: @Override @Nonnull
121: public Collection<Collection<?>> values()
122: {
123: return map.values();
124: }
125:
126: /***********************************************************************************************************************************************************
127: * {@inheritDoc}
128: **********************************************************************************************************************************************************/
129: @Override @Nonnull
130: public Set<Map.Entry<Key<?>, Collection<?>>> entrySet()
131: {
132: return map.entrySet();
133: }
134:
135: /***********************************************************************************************************************************************************
136: * {@inheritDoc}
137: **********************************************************************************************************************************************************/
138: @Override @Nonnull
139: public Iterator<Map.Entry<Key<?>, Collection<?>>> iterator()
140: {
141: return map.entrySet().iterator();
142: }
143:
144: /***********************************************************************************************************************************************************
145: * {@inheritDoc}
146: **********************************************************************************************************************************************************/
147: @Override /* @Nonnegative */
148: public int size()
149: {
150: return map.size();
151: }
152:
153: /***********************************************************************************************************************************************************
154: * {@inheritDoc}
155: **********************************************************************************************************************************************************/
156: @Override @Nonnull
157: public Map<Key<?>, Collection<?>> asMap()
158: {
159: return new HashMap<>(map);
160: }
161:
162: /***********************************************************************************************************************************************************
163: * {@inheritDoc}
164: **********************************************************************************************************************************************************/
165: @Override @SuppressWarnings("unchecked")
166: public <T> void forEach (@Nonnull final BiConsumer<? super Key<T>, ? super Collection<T>> action)
167: {
168: map.forEach((BiConsumer<? super Key<?>, ? super Collection<?>>)action);
169: }
170:
171: /***********************************************************************************************************************************************************
172: * {@inheritDoc}
173: **********************************************************************************************************************************************************/
174: @Override @Nonnull
175: public String toString()
176: {
177: return map.toString();
178: }
179: }