1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.collections.primitives.adapters;
18
19 import java.io.Serializable;
20 import java.util.Collection;
21
22 import org.apache.commons.collections.primitives.LongCollection;
23
24 /**
25 * Adapts an {@link LongCollection LongCollection}
26 * to the {@link java.util.Collection Collection}
27 * interface.
28 * <p />
29 * This implementation delegates most methods
30 * to the provided {@link LongCollection LongCollection}
31 * implementation in the "obvious" way.
32 *
33 * @since Commons Primitives 1.0
34 * @version $Revision: 480462 $ $Date: 2006-11-29 03:15:00 -0500 (Wed, 29 Nov 2006) $
35 * @author Rodney Waldhoff
36 */
37 final public class LongCollectionCollection extends AbstractLongCollectionCollection implements Serializable {
38
39 /**
40 * Create a {@link Collection Collection} wrapping
41 * the specified {@link LongCollection LongCollection}. When
42 * the given <i>collection</i> is <code>null</code>,
43 * returns <code>null</code>.
44 *
45 * @param collection the (possibly <code>null</code>)
46 * {@link LongCollection LongCollection} to wrap
47 * @return a {@link Collection Collection} wrapping the given
48 * <i>collection</i>, or <code>null</code> when <i>collection</i> is
49 * <code>null</code>.
50 */
51 public static Collection wrap(LongCollection collection) {
52 if(null == collection) {
53 return null;
54 } else if(collection instanceof Serializable) {
55 return new LongCollectionCollection(collection);
56 } else {
57 return new NonSerializableLongCollectionCollection(collection);
58 }
59 }
60
61 /**
62 * Creates a {@link Collection Collection} wrapping
63 * the specified {@link LongCollection LongCollection}.
64 * @see #wrap
65 */
66 public LongCollectionCollection(LongCollection collection) {
67 _collection = collection;
68 }
69
70
71 protected LongCollection getLongCollection() {
72 return _collection;
73 }
74
75 private LongCollection _collection = null;
76 }