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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * // Copyright (c) 1998, 2007, Oracle. All rights reserved.
 * 
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
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 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
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package oracle.toplink.essentials.internal.identitymaps;

import java.util.*;

/**
 *    Purpose: Provides the capability to insert CacheKeys into a Linked List.
 *    
Responsibilities:

 *     Provide same cabailities as superclass.
 *    
 Maintain within linked list.
 *    
 *    @see CacheIdentityMap
 *    @since TOPLink/Java 1.0
 */
public class LinkedCacheKey extends CacheKey {

    /** Handle on previos element in cache */
    protected LinkedCacheKey previous;

    /** Handle on next element in cache */
    protected LinkedCacheKey next;

    /**
     *    Initialize the newly allocated instance of this class.
     *    @param object is the domain object.
     *    @param writeLockValue is the write lock value number.
     */
    public LinkedCacheKey(Vector primaryKey, Object object, Object writeLockValue, long readTime) {
        super(primaryKey, object, writeLockValue, readTime);
    }

    public LinkedCacheKey getNext() {
        return next;
    }

    public LinkedCacheKey getPrevious() {
        return previous;
    }

    public void setNext(LinkedCacheKey next) {
        this.next = next;
    }

    public void setPrevious(LinkedCacheKey previous) {
        this.previous = previous;
    }
}