blob: f6aafb743120790e8ca0557f858e8505d43f85fe (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright (C) 2010 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.common.util.concurrent;
import com.google.common.annotations.GwtIncompatible;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.atomic.AtomicReferenceArray;
import org.checkerframework.checker.nullness.compatqual.NullableDecl;
/**
* Static utility methods pertaining to classes in the {@code java.util.concurrent.atomic} package.
*
* @author Kurt Alfred Kluever
* @since 10.0
*/
@GwtIncompatible
public final class Atomics {
private Atomics() {}
/**
* Creates an {@code AtomicReference} instance with no initial value.
*
* @return a new {@code AtomicReference} with no initial value
*/
public static <V> AtomicReference<V> newReference() {
return new AtomicReference<V>();
}
/**
* Creates an {@code AtomicReference} instance with the given initial value.
*
* @param initialValue the initial value
* @return a new {@code AtomicReference} with the given initial value
*/
public static <V> AtomicReference<V> newReference(@NullableDecl V initialValue) {
return new AtomicReference<V>(initialValue);
}
/**
* Creates an {@code AtomicReferenceArray} instance of given length.
*
* @param length the length of the array
* @return a new {@code AtomicReferenceArray} with the given length
*/
public static <E> AtomicReferenceArray<E> newReferenceArray(int length) {
return new AtomicReferenceArray<E>(length);
}
/**
* Creates an {@code AtomicReferenceArray} instance with the same length as, and all elements
* copied from, the given array.
*
* @param array the array to copy elements from
* @return a new {@code AtomicReferenceArray} copied from the given array
*/
public static <E> AtomicReferenceArray<E> newReferenceArray(E[] array) {
return new AtomicReferenceArray<E>(array);
}
}
|
