| ConcurrentHashSet.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * The contents of this file are subject to the terms of the Liferay Enterprise
5 * Subscription License ("License"). You may not use this file except in
6 * compliance with the License. You can obtain a copy of the License by
7 * contacting Liferay, Inc. See the License for the specific language governing
8 * permissions and limitations under the License, including but not limited to
9 * distribution rights of the Software.
10 *
11 *
12 *
13 */
14
15 package com.liferay.portal.kernel.concurrent;
16
17 import com.liferay.portal.kernel.util.MapBackedSet;
18
19 import java.util.Set;
20 import java.util.concurrent.ConcurrentHashMap;
21
22 /**
23 * <a href="ConcurrentHashSet.java.html"><b><i>View Source</i></b></a>
24 *
25 * @author Brian Wing Shun Chan
26 */
27 public class ConcurrentHashSet<E> extends MapBackedSet<E> {
28
29 public ConcurrentHashSet() {
30 super(new ConcurrentHashMap<E, Boolean>());
31 }
32
33 public ConcurrentHashSet(int capacity) {
34 super(new ConcurrentHashMap<E, Boolean>(capacity));
35 }
36
37 public ConcurrentHashSet(Set<E> set) {
38 super(new ConcurrentHashMap<E, Boolean>());
39
40 addAll(set);
41 }
42
43 }