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.collection; 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; 024 025 /** 026 * Serializable subclass of AbstractCollectionDecorator. 027 * 028 * @author Stephen Colebourne 029 * @since Commons Collections 3.1 030 */ 031 public abstract class AbstractSerializableCollectionDecorator 032 extends AbstractCollectionDecorator 033 implements Serializable { 034 035 /** Serialization version */ 036 private static final long serialVersionUID = 6249888059822088500L; 037 038 /** 039 * Constructor. 040 */ 041 protected AbstractSerializableCollectionDecorator(Collection coll) { 042 super(coll); 043 } 044 045 //----------------------------------------------------------------------- 046 /** 047 * Write the collection out using a custom routine. 048 * 049 * @param out the output stream 050 * @throws IOException 051 */ 052 private void writeObject(ObjectOutputStream out) throws IOException { 053 out.defaultWriteObject(); 054 out.writeObject(collection); 055 } 056 057 /** 058 * Read the collection in using a custom routine. 059 * 060 * @param in the input stream 061 * @throws IOException 062 * @throws ClassNotFoundException 063 */ 064 private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException { 065 in.defaultReadObject(); 066 collection = (Collection) in.readObject(); 067 } 068 069 }