Package: ArrayListCollectorSupport

ArrayListCollectorSupport

name	instruction	branch	complexity	line	method
ArrayListCollectorSupport()	M: 3 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 1 C: 0 0%	M: 1 C: 0 0%
accumulator()	M: 2 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 1 C: 0 0%	M: 1 C: 0 0%
characteristics()	M: 2 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 1 C: 0 0%	M: 1 C: 0 0%
combiner()	M: 2 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 1 C: 0 0%	M: 1 C: 0 0%
lambda$combiner$0(List, List)	M: 6 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 1 C: 0 0%	M: 1 C: 0 0%
supplier()	M: 2 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 1 C: 0 0%	M: 1 C: 0 0%

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 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.spi;
27:
28: import javax.annotation.Nonnull;
29: import java.util.ArrayList;
30: import java.util.Collections;
31: import java.util.List;
32: import java.util.Set;
33: import java.util.function.BiConsumer;
34: import java.util.function.BinaryOperator;
35: import java.util.function.Supplier;
36: import java.util.stream.Collector;
37:
38: /***************************************************************************************************************************************************************
39: *
40: * A support {@link Collector} which uses an {@link ArrayList} as the accumulator.
41: *
42: * @param <COLLECTED_TYPE> the type of collected items
43: * @param <COLLECTING_TYPE> the type of collecting item
44: *
45: * @author Fabrizio Giudici
46: *
47: **************************************************************************************************************************************************************/
48: public abstract class ArrayListCollectorSupport<COLLECTED_TYPE, COLLECTING_TYPE>
49: implements Collector<COLLECTED_TYPE, List<COLLECTED_TYPE>, COLLECTING_TYPE>
50: {
51: @Override @Nonnull
52: public Supplier<List<COLLECTED_TYPE>> supplier()
53: {
54: return ArrayList::new;
55: }
56:
57: @Override @Nonnull
58: public BiConsumer<List<COLLECTED_TYPE>, COLLECTED_TYPE> accumulator()
59: {
60: return List::add;
61: }
62:
63: @Override @Nonnull
64: public BinaryOperator<List<COLLECTED_TYPE>> combiner()
65: {
66: return (left, right) -> { left.addAll(right); return left; };
67: }
68:
69: @Override @Nonnull
70: public Set<Characteristics> characteristics()
71: {
72: // Not CONCURRENT since ArrayList is not thread-safe
73: return Collections.emptySet();
74: }
75: }