AbstractSerializableSetDecorator


1   /*
2    *  Copyright 2004 The Apache Software Foundation
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   */
16  package org.apache.commons.collections.set;
17  
18  import java.io.IOException  ;
19  import java.io.ObjectInputStream  ;
20  import java.io.ObjectOutputStream  ;
21  import java.io.Serializable  ;
22  import java.util.Collection  ;
23  import java.util.Set  ;
24  
25  /**
26   * Serializable subclass of AbstractSetDecorator.
27   * 
28   * @author Stephen Colebourne
29   * @since Commons Collections 3.1
30   */
31  public abstract class AbstractSerializableSetDecorator
32          extends AbstractSetDecorator
33          implements Serializable   {
34  
35      /** Serialization version */
36      private static final long serialVersionUID = 1229469966212206107L;
37  
38      /**
39       * Constructor.
40       */
41      protected AbstractSerializableSetDecorator(Set   set) {
42          super(set);
43      }
44  
45      //-----------------------------------------------------------------------
46      /**
47       * Write the set out using a custom routine.
48       * 
49       * @param out  the output stream
50       * @throws IOException
51       */
52      private void writeObject(ObjectOutputStream   out) throws IOException   {
53          out.defaultWriteObject();
54          out.writeObject(collection);
55      }
56  
57      /**
58       * Read the set in using a custom routine.
59       * 
60       * @param in  the input stream
61       * @throws IOException
62       * @throws ClassNotFoundException
63       */
64      private void readObject(ObjectInputStream   in) throws IOException  , ClassNotFoundException   {
65          in.defaultReadObject();
66          collection = (Collection  ) in.readObject();
67      }
68  
69  }
70
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