| package org.apache.commons.jcs3.utils.struct; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import java.io.Serializable; |
| |
| /** |
| * This serves as a placeholder in a double linked list. You can extend this to |
| * add functionality. This allows you to remove in constant time from a linked |
| * list. |
| * <p> |
| * It simply holds the payload and a reference to the items before and after it |
| * in the list. |
| */ |
| public class DoubleLinkedListNode<T> |
| implements Serializable |
| { |
| /** Dont' change. */ |
| private static final long serialVersionUID = -1114934407695836097L; |
| |
| /** The object in the node. */ |
| private final T payload; |
| |
| /** Double Linked list references */ |
| public DoubleLinkedListNode<T> prev; |
| |
| /** Double Linked list references */ |
| public DoubleLinkedListNode<T> next; |
| |
| /** |
| * @param payloadP |
| */ |
| public DoubleLinkedListNode(final T payloadP) |
| { |
| payload = payloadP; |
| } |
| |
| /** |
| * @return Object |
| */ |
| public T getPayload() |
| { |
| return payload; |
| } |
| } |