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1   package org.apache.commons.jcs.engine.memory.util;
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 org.apache.commons.jcs.engine.behavior.ICacheElement;
23  import org.apache.commons.jcs.utils.struct.DoubleLinkedListNode;
24  
25  /**
26   * This wrapper is needed for double linked lists.
27   */
28  public class MemoryElementDescriptor<K, V>
29      extends DoubleLinkedListNode<ICacheElement<K, V>>
30  {
31      /** Don't change */
32      private static final long serialVersionUID = -1905161209035522460L;
33  
34      /**
35       * Constructs a usable MemoryElementDescriptor.
36       * <p>
37       * @param ce
38       */
39      public MemoryElementDescriptor( ICacheElement<K, V> ce )
40      {
41          super( ce );
42      }
43  
44      /**
45       * Get the cache element
46       *
47       * @return the ce
48       */
49      public ICacheElement<K, V> getCacheElement()
50      {
51          return getPayload();
52      }
53  }