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.finder;
27
28 import javax.annotation.Nonnull;
29 import java.util.ArrayList;
30 import java.util.Collection;
31 import java.util.Collections;
32 import java.util.List;
33 import java.util.concurrent.CopyOnWriteArrayList;
34 import it.tidalwave.util.spi.SimpleFinderSupport;
35
36 /***************************************************************************************************************************************************************
37 *
38 * An implementation of {@link it.tidalwave.util.Finder} which holds an immutable list of items.
39 *
40 * This class is now implementation only; please use {@link it.tidalwave.util.Finder#ofCloned} instead.
41 *
42 * @param <T> the type of contained items
43 *
44 * @author Fabrizio Giudici
45 *
46 **************************************************************************************************************************************************************/
47 public class ArrayListFinder<T> extends SimpleFinderSupport<T>
48 {
49 private static final long serialVersionUID = -3529114277448372453L;
50
51 @Nonnull
52 private final Collection<T> items;
53
54 public ArrayListFinder (@Nonnull final Collection<? extends T> items)
55 {
56 this.items = Collections.unmodifiableCollection(new ArrayList<>(items));
57 }
58
59 public ArrayListFinder (@Nonnull final ArrayListFinder<T> other, @Nonnull final Object override)
60 {
61 super(other, override);
62 final var source = getSource(ArrayListFinder.class, other, override);
63 this.items = source.items;
64 }
65
66 @Override @Nonnull
67 protected List<T> computeResults()
68 {
69 return new CopyOnWriteArrayList<>(items);
70 }
71 }