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1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *   http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing,
14   * software distributed under the License is distributed on an
15   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16   * KIND, either express or implied.  See the License for the
17   * specific language governing permissions and limitations
18   * under the License.
19   * ====================================================================
20   *
21   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  package org.apache.hc.client5.http.cache;
28  
29  import org.apache.hc.core5.annotation.Contract;
30  import org.apache.hc.core5.annotation.ThreadingBehavior;
31  
32  /**
33   * Serializer / deserializer for {@link HttpCacheStorageEntry} entries.
34   *
35   * @since 5.0
36   */
37  @Contract(threading = ThreadingBehavior.STATELESS)
38  public interface HttpCacheEntrySerializer<T> {
39  
40      /**
41       * Serializes the given entry.
42       *
43       * @param entry cache entry
44       * @return serialized representation of the cache entry
45       * @throws ResourceIOException
46       */
47      T serialize(HttpCacheStorageEntry entry) throws ResourceIOException;
48  
49      /**
50       * Deserializes a cache entry from its serialized representation.
51       * @param serializedObject serialized representation of the cache entry
52       * @return cache entry
53       * @throws ResourceIOException
54       */
55      HttpCacheStorageEntry deserialize(T serializedObject) throws ResourceIOException;
56  
57  }