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1   package org.apache.commons.jcs.engine.behavior;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.io.IOException;
23  
24  /**
25   * Defines the behavior for cache element serializers. This layer of abstraction allows us to plug
26   * in different serialization mechanisms, such as a compressing standard serializer.
27   * <p>
28   * @author Aaron Smuts
29   */
30  public interface IElementSerializer
31  {
32      /**
33       * Turns an object into a byte array.
34       * @param obj
35       * @return byte[]
36       * @throws IOException
37       */
38      <T> byte[] serialize( T obj )
39          throws IOException;
40  
41      /**
42       * Turns a byte array into an object.
43       * @param bytes
44       * @return Object
45       * @throws IOException
46       * @throws ClassNotFoundException thrown if we don't know the object.
47       */
48      <T> T deSerialize( byte[] bytes, ClassLoader loader )
49          throws IOException, ClassNotFoundException;
50  }