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.list;
018    
019    import java.io.IOException;
020    import java.io.ObjectInputStream;
021    import java.io.ObjectOutputStream;
022    import java.io.Serializable;
023    import java.util.Collection;
024    import java.util.List;
025    
026    /**
027     * Serializable subclass of AbstractListDecorator.
028     * 
029     * @author Stephen Colebourne
030     * @since Commons Collections 3.1
031     */
032    public abstract class AbstractSerializableListDecorator
033            extends AbstractListDecorator
034            implements Serializable {
035    
036        /** Serialization version */
037        private static final long serialVersionUID = 2684959196747496299L;
038    
039        /**
040         * Constructor.
041         */
042        protected AbstractSerializableListDecorator(List list) {
043            super(list);
044        }
045    
046        //-----------------------------------------------------------------------
047        /**
048         * Write the list out using a custom routine.
049         * 
050         * @param out  the output stream
051         * @throws IOException
052         */
053        private void writeObject(ObjectOutputStream out) throws IOException {
054            out.defaultWriteObject();
055            out.writeObject(collection);
056        }
057    
058        /**
059         * Read the list in using a custom routine.
060         * 
061         * @param in  the input stream
062         * @throws IOException
063         * @throws ClassNotFoundException
064         */
065        private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
066            in.defaultReadObject();
067            collection = (Collection) in.readObject();
068        }
069    
070    }