001package org.apache.commons.jcs.engine.memory.util;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 *   http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.apache.commons.jcs.engine.behavior.ICacheElement;
023import org.apache.commons.jcs.utils.struct.DoubleLinkedListNode;
024
025/**
026 * This wrapper is needed for double linked lists.
027 */
028public class MemoryElementDescriptor<K, V>
029    extends DoubleLinkedListNode<ICacheElement<K, V>>
030{
031    /** Don't change */
032    private static final long serialVersionUID = -1905161209035522460L;
033
034    /**
035     * Constructs a usable MemoryElementDescriptor.
036     * <p>
037     * @param ce
038     */
039    public MemoryElementDescriptor( ICacheElement<K, V> ce )
040    {
041        super( ce );
042    }
043
044    /**
045     * Get the cache element
046     *
047     * @return the ce
048     */
049    public ICacheElement<K, V> getCacheElement()
050    {
051        return getPayload();
052    }
053}