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 */
017package org.apache.commons.collections4.list;
018
019import java.io.IOException;
020import java.io.ObjectInputStream;
021import java.io.ObjectOutputStream;
022import java.util.Collection;
023import java.util.List;
024
025/**
026 * Serializable subclass of AbstractListDecorator.
027 *
028 * @since 3.1
029 * @version $Id: AbstractSerializableListDecorator.html 887892 2013-11-24 13:43:45Z tn $
030 */
031public abstract class AbstractSerializableListDecorator<E>
032        extends AbstractListDecorator<E> {
033
034    /** Serialization version */
035    private static final long serialVersionUID = 2684959196747496299L;
036
037    /**
038     * Constructor that wraps (not copies).
039     *
040     * @param list  the list to decorate, must not be null
041     * @throws IllegalArgumentException if list is null
042     */
043    protected AbstractSerializableListDecorator(final List<E> list) {
044        super(list);
045    }
046
047    //-----------------------------------------------------------------------
048    /**
049     * Write the list out using a custom routine.
050     *
051     * @param out  the output stream
052     * @throws IOException
053     */
054    private void writeObject(final ObjectOutputStream out) throws IOException {
055        out.defaultWriteObject();
056        out.writeObject(decorated());
057    }
058
059    /**
060     * Read the list in using a custom routine.
061     *
062     * @param in  the input stream
063     * @throws IOException
064     * @throws ClassNotFoundException
065     */
066    @SuppressWarnings("unchecked")
067    private void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException {
068        in.defaultReadObject();
069        setCollection((Collection<E>) in.readObject());
070    }
071
072}