001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.commons.collections.primitives.adapters;
018
019 import java.io.Serializable;
020 import java.util.Collection;
021
022 import org.apache.commons.collections.primitives.BooleanCollection;
023
024 /**
025 * Adapts an {@link org.apache.commons.collections.primitives.BooleanCollection
026 * BooleanCollection} to the {@link java.util.Collection Collection} interface.
027 * <p />
028 * This implementation delegates most methods to the provided {@link
029 * org.apache.commons.collections.primitives.BooleanCollection
030 * BooleanCollection} implementation in the "obvious" way.
031 *
032 * @since Commons Primitives 1.1
033 * @version $Revision: 480462 $ $Date: 2006-11-29 09:15:00 +0100 (Wed, 29 Nov 2006) $
034 */
035 final public class BooleanCollectionCollection extends
036 AbstractBooleanCollectionCollection implements Serializable
037 {
038
039 /**
040 * Create a {@link java.util.Collection Collection} wrapping the specified
041 * {@link org.apache.commons.collections.primitives.BooleanCollection
042 * BooleanCollection}. When the given <i>collection</i> is <code>null
043 * </code>, returns <code>null</code>.
044 *
045 * @param collection the (possibly <code>null</code>)
046 * {@link org.apache.commons.collections.primitives.BooleanCollection
047 * BooleanCollection} to wrap
048 * @return a {@link java.util.Collection Collection} wrapping the given
049 * <i>collection</i>, or <code>null</code> when <i>collection</i> is
050 * <code>null</code>.
051 */
052 public static Collection wrap(BooleanCollection collection) {
053 if(null == collection) {
054 return null;
055 } else if(collection instanceof Serializable) {
056 return new BooleanCollectionCollection(collection);
057 } else {
058 return new NonSerializableBooleanCollectionCollection(collection);
059 }
060 }
061
062 /**
063 * Creates a {@link java.util.Collection Collection} wrapping the specified
064 * {@link org.apache.commons.collections.primitives.BooleanCollection
065 * BooleanCollection}.
066 * @see #wrap
067 */
068 public BooleanCollectionCollection(BooleanCollection collection) {
069 _collection = collection;
070 }
071
072
073 protected BooleanCollection getBooleanCollection() {
074 return _collection;
075 }
076
077 private BooleanCollection _collection = null;
078 }