Package: MultiMap

MultiMap

name	instruction	branch	complexity	line	method
MultiMap()	M: 0 C: 3 100%	M: 0 C: 0 100%	M: 0 C: 1 100%	M: 0 C: 1 100%	M: 0 C: 1 100%
add(Object, Object)	M: 0 C: 7 100%	M: 0 C: 0 100%	M: 0 C: 1 100%	M: 0 C: 2 100%	M: 0 C: 1 100%
addAll(Object, Collection)	M: 0 C: 10 100%	M: 0 C: 2 100%	M: 0 C: 2 100%	M: 0 C: 3 100%	M: 0 C: 1 100%
getValues(Object)	M: 0 C: 12 100%	M: 0 C: 2 100%	M: 0 C: 2 100%	M: 0 C: 2 100%	M: 0 C: 1 100%
internalGetValues(Object)	M: 0 C: 18 100%	M: 0 C: 2 100%	M: 0 C: 2 100%	M: 0 C: 5 100%	M: 0 C: 1 100%

Coverage

1: /*
2: * *********************************************************************************************************************
3: *
4: * TheseFoolishThings: Miscellaneous utilities
5: * http://tidalwave.it/projects/thesefoolishthings
6: *
7: * Copyright (C) 2009 - 2024 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
12: * the License. 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
17: * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
18: * specific language governing permissions and limitations under the License.
19: *
20: * *********************************************************************************************************************
21: *
22: * git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
23: * git clone https://github.com/tidalwave-it/thesefoolishthings-src
24: *
25: * *********************************************************************************************************************
26: */
27: package it.tidalwave.role.impl;
28:
29: import javax.annotation.Nonnull;
30: import java.util.Collection;
31: import java.util.Collections;
32: import java.util.HashMap;
33: import java.util.HashSet;
34: import java.util.Set;
35:
36: /***********************************************************************************************************************
37: *
38: * @author Fabrizio Giudici
39: *
40: **********************************************************************************************************************/
41: public class MultiMap<K, V> extends HashMap<K, Set<V>>
42: {
43: private static final long serialVersionUID = 8834342771135005212L;
44:
45: public synchronized void add (@Nonnull final K key, @Nonnull final V value)
46: {
47: internalGetValues(key).add(value);
48: }
49:
50: public synchronized void addAll (@Nonnull final K key, @Nonnull final Collection<? extends V> values)
51: {
52:• if (!values.isEmpty())
53: {
54: internalGetValues(key).addAll(values);
55: }
56: }
57:
58: @Nonnull
59: public synchronized Set<V> getValues (@Nonnull final K key)
60: {
61: final var values = get(key);
62:• return (values == null) ? Collections.emptySet() : Collections.unmodifiableSet(values);
63: }
64:
65: @Nonnull
66: private Set<V> internalGetValues (@Nonnull final K key)
67: {
68: var values = get(key);
69:
70:• if (values == null)
71: {
72: values = new HashSet<>();
73: put(key, values);
74: }
75:
76: return values;
77: }
78: }