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.set;
18
19 import java.io.IOException;
20 import java.io.ObjectInputStream;
21 import java.io.ObjectOutputStream;
22 import java.io.Serializable;
23 import java.util.Collection;
24 import java.util.Set;
25
26 /**
27 * Serializable subclass of AbstractSetDecorator.
28 *
29 * @since 3.1
30 * @version $Id: AbstractSerializableSetDecorator.java 1429905 2013-01-07 17:15:14Z ggregory $
31 */
32 public abstract class AbstractSerializableSetDecorator<E>
33 extends AbstractSetDecorator<E>
34 implements Serializable {
35
36 /** Serialization version */
37 private static final long serialVersionUID = 1229469966212206107L;
38
39 /**
40 * Constructor.
41 *
42 * @param set the list to decorate, must not be null
43 * @throws IllegalArgumentException if set is null
44 */
45 protected AbstractSerializableSetDecorator(final Set<E> set) {
46 super(set);
47 }
48
49 //-----------------------------------------------------------------------
50 /**
51 * Write the set out using a custom routine.
52 *
53 * @param out the output stream
54 * @throws IOException
55 */
56 private void writeObject(final ObjectOutputStream out) throws IOException {
57 out.defaultWriteObject();
58 out.writeObject(collection);
59 }
60
61 /**
62 * Read the set in using a custom routine.
63 *
64 * @param in the input stream
65 * @throws IOException
66 * @throws ClassNotFoundException
67 */
68 @SuppressWarnings("unchecked")
69 private void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException {
70 in.defaultReadObject();
71 collection = (Collection<E>) in.readObject();
72 }
73
74 }