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org.apache.jcs.engine.control.group.GroupId |
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1 | package org.apache.jcs.engine.control.group; |
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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 | * Used to avoid name conflict when group cache items are mixed with non-group |
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26 | * cache items in the same cache. |
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27 | * |
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28 | */ |
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29 | public class GroupId |
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30 | implements Serializable |
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31 | { |
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32 | private static final long serialVersionUID = 4626368486444860133L; |
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33 | ||
34 | /** Description of the Field */ |
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35 | public final String groupName; |
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36 | ||
37 | /** |
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38 | * the name of the region. |
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39 | */ |
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40 | public final String cacheName; |
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41 | ||
42 | private String toString; |
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43 | ||
44 | /** |
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45 | * Constructor for the GroupId object |
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46 | * |
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47 | * @param cacheName |
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48 | * @param groupName |
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49 | */ |
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50 | public GroupId( String cacheName, String groupName ) |
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51 | 608 | { |
52 | 608 | this.cacheName = cacheName; |
53 | 608 | this.groupName = groupName; |
54 | ||
55 | 608 | if ( cacheName == null ) |
56 | { |
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57 | 0 | throw new IllegalArgumentException( "cacheName must not be null." ); |
58 | } |
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59 | 608 | if ( groupName == null ) |
60 | { |
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61 | 0 | throw new IllegalArgumentException( "groupName must not be null." ); |
62 | } |
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63 | 608 | } |
64 | ||
65 | /* |
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66 | * (non-Javadoc) |
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67 | * @see java.lang.Object#equals(java.lang.Object) |
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68 | */ |
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69 | public boolean equals( Object obj ) |
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70 | { |
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71 | 800 | if ( obj == null || !( obj instanceof GroupId ) ) |
72 | { |
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73 | 0 | return false; |
74 | } |
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75 | 800 | GroupId g = (GroupId) obj; |
76 | 800 | return cacheName.equals( g.cacheName ) && groupName.equals( g.groupName ); |
77 | } |
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78 | ||
79 | /* |
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80 | * (non-Javadoc) |
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81 | * @see java.lang.Object#hashCode() |
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82 | */ |
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83 | public int hashCode() |
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84 | { |
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85 | 1208 | return cacheName.hashCode() + groupName.hashCode(); |
86 | } |
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87 | ||
88 | /* |
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89 | * (non-Javadoc) |
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90 | * @see java.lang.Object#toString() |
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91 | */ |
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92 | public String toString() |
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93 | { |
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94 | 408 | if ( toString == null ) |
95 | { |
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96 | 408 | toString = "[groupId=" + cacheName + ", " + groupName + ']'; |
97 | } |
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98 | ||
99 | 408 | return toString; |
100 | } |
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101 | } |
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