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
23 /**
24 * A data structure that stores a Btree name associated with a revision. We use
25 * it to manage Btree of Btrees.
26 *
27 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
28 */
29 /* no qualifier*/class NameRevision extends Tuple<String, Long>
30 {
31 /**
32 * A constructor for the RevisionName class
33 * @param revision The revision
34 * @param name The BTree name
35 */
36 /* no qualifier*/NameRevision( String name, long revision )
37 {
38 super( name, revision );
39 }
40
41
42 /**
43 * @return the revision
44 */
45 /* no qualifier*/long getRevision()
46 {
47 return getValue();
48 }
49
50
51 /**
52 * @param revision the revision to set
53 */
54 /* no qualifier*/void setRevision( long revision )
55 {
56 setValue( revision );
57 }
58
59
60 /**
61 * @return the btree name
62 */
63 /* no qualifier*/String getName()
64 {
65 return getKey();
66 }
67
68
69 /**
70 * @param name the btree name to set
71 */
72 /* no qualifier*/void setName( String name )
73 {
74 setKey( name );
75 }
76
77
78 /**
79 * @see Object#equals(Object)
80 */
81 public boolean equals( Object that )
82 {
83 if ( this == that )
84 {
85 return true;
86 }
87
88 if ( !( that instanceof NameRevision ) )
89 {
90 return false;
91 }
92
93 NameRevision revisionName = ( NameRevision ) that;
94
95 if ( getRevision() != revisionName.getRevision() )
96 {
97 return false;
98 }
99
100 if ( getName() == null )
101 {
102 return revisionName.getName() == null;
103 }
104
105 return ( getName().equals( revisionName.getName() ) );
106
107 }
108
109
110 @Override
111 public int hashCode()
112 {
113 final int prime = 31;
114 int result = 1;
115 result = prime * result + ( ( getName() == null ) ? 0 : getName().hashCode() );
116 result = prime * result + ( int ) ( getRevision() ^ ( getRevision() >>> 32 ) );
117 return result;
118 }
119
120
121 /**
122 * @see Object#toString()
123 */
124 public String toString()
125 {
126 return "[" + getName() + ":" + getRevision() + "]";
127 }
128 }