1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.mavibot.btree;
21
22 import java.io.Serializable;
23
24
25 /**
26 * A data structure that stores a revision associated to a BTree name. We use
27 * it to allow the access to old revisions.
28 *
29 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
30 */
31 /* no qualifier*/class RevisionName extends Tuple<Long, String> implements Serializable
32 {
33 /**
34 * for serialization purpose
35 */
36 protected RevisionName()
37 {
38 }
39
40
41 /**
42 * A constructor for the RevisionName class
43 * @param revision The revision
44 * @param name The BTree name
45 */
46 /* no qualifier*/RevisionName( long revision, String name )
47 {
48 super( revision, name );
49 }
50
51
52 /**
53 * @return the revision
54 */
55 /* no qualifier*/long getRevision()
56 {
57 return getKey();
58 }
59
60
61 /**
62 * @param revision the revision to set
63 */
64 /* no qualifier*/void setRevision( long revision )
65 {
66 setKey( revision );
67 }
68
69
70 /**
71 * @return the btree name
72 */
73 /* no qualifier*/String getName()
74 {
75 return getValue();
76 }
77
78
79 /**
80 * @param name the btree name to set
81 */
82 /* no qualifier*/void setName( String name )
83 {
84 setValue( name );
85 }
86
87
88 /**
89 * @see Object#equals(Object)
90 */
91 public boolean equals( Object that )
92 {
93 if ( this == that )
94 {
95 return true;
96 }
97
98 if ( !( that instanceof RevisionName ) )
99 {
100 return false;
101 }
102
103 RevisionName revisionName = ( RevisionName ) that;
104
105 if ( getRevision() != revisionName.getRevision() )
106 {
107 return false;
108 }
109
110 if ( getName() == null )
111 {
112 return revisionName.getName() == null;
113 }
114
115 return ( getName().equals( revisionName.getName() ) );
116
117 }
118
119
120 @Override
121 public int hashCode()
122 {
123 final int prime = 31;
124 int result = 1;
125 result = prime * result + ( ( getName() == null ) ? 0 : getName().hashCode() );
126 result = prime * result + ( int ) ( getRevision() ^ ( getRevision() >>> 32 ) );
127 return result;
128 }
129
130
131 /**
132 * @see Object#toString()
133 */
134 public String toString()
135 {
136 return "[" + getRevision() + ":" + getName() + "]";
137 }
138 }