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org.apache.jcs.utils.struct.DoubleLinkedListNode |
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1 | package org.apache.jcs.utils.struct; |
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2 | ||
3 | /* |
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4 | * Licensed to the Apache Software Foundation (ASF) under one |
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5 | * or more contributor license agreements. See the NOTICE file |
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6 | * distributed with this work for additional information |
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7 | * regarding copyright ownership. The ASF licenses this file |
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8 | * to you under the Apache License, Version 2.0 (the |
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9 | * "License"); you may not use this file except in compliance |
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10 | * with the License. You may obtain a copy of the License at |
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11 | * |
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12 | * http://www.apache.org/licenses/LICENSE-2.0 |
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13 | * |
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14 | * Unless required by applicable law or agreed to in writing, |
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15 | * software distributed under the License is distributed on an |
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16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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17 | * KIND, either express or implied. See the License for the |
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18 | * specific language governing permissions and limitations |
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19 | * under the License. |
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20 | */ |
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21 | ||
22 | import java.io.Serializable; |
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23 | ||
24 | /** |
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25 | * This serves as a placeholder in a double linked list. You can extend this to |
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26 | * add functionality. This allows you to remove in constant time from a linked |
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27 | * list. |
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28 | * <p> |
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29 | * It simply holds the payload and a reference to the items before and after it |
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30 | * in the list. |
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31 | */ |
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32 | public class DoubleLinkedListNode |
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33 | implements Serializable |
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34 | { |
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35 | private static final long serialVersionUID = -1114934407695836097L; |
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36 | ||
37 | private Object payload; |
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38 | ||
39 | /** Double Linked list references */ |
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40 | public DoubleLinkedListNode prev; |
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41 | ||
42 | /** Double Linked list references */ |
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43 | public DoubleLinkedListNode next; |
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44 | ||
45 | /** |
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46 | * @param payloadP |
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47 | */ |
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48 | 126075 | public DoubleLinkedListNode( Object payloadP ) |
49 | 3682108 | { |
50 | 3807650 | payload = payloadP; |
51 | 3808577 | } |
52 | ||
53 | /** |
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54 | * @return Object |
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55 | */ |
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56 | public Object getPayload() |
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57 | { |
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58 | 2949719 | return payload; |
59 | } |
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60 | } |
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