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 import java.util.Arrays;
24
25
26 /**
27 * A class to hold name, revision, and copied page offsets of a B-Tree.
28 *
29 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
30 */
31 public class RevisionOffset
32 {
33 /** the revision number */
34 private long revision;
35
36 /** offsets of copied pages */
37 private long[] offsets;
38
39
40 /**
41 * Creates a new instance of RevisionOffset.
42 *
43 * @param revision the revision number
44 * @param offsets array of copied page offsets
45 */
46 public RevisionOffset( long revision, long[] offsets )
47 {
48 this.revision = revision;
49 this.offsets = offsets;
50 }
51
52
53 public long getRevision()
54 {
55 return revision;
56 }
57
58
59 /* no qualifier */void setRevision( long revision )
60 {
61 this.revision = revision;
62 }
63
64
65 public long[] getOffsets()
66 {
67 return offsets;
68 }
69
70
71 /* no qualifier */void setOffsets( long[] offsets )
72 {
73 this.offsets = offsets;
74 }
75
76
77 @Override
78 public int hashCode()
79 {
80 final int prime = 31;
81 int result = 1;
82 result = prime * result + ( int ) ( revision ^ ( revision >>> 32 ) );
83 return result;
84 }
85
86
87 @Override
88 public boolean equals( Object obj )
89 {
90 if ( this == obj )
91 {
92 return true;
93 }
94
95 if ( obj == null )
96 {
97 return false;
98 }
99
100 RevisionOffset other = ( RevisionOffset ) obj;
101
102 if ( revision != other.revision )
103 {
104 return false;
105 }
106
107 return true;
108 }
109
110
111 @Override
112 public String toString()
113 {
114 return "RevisionOffset [revision=" + revision + ", offsets=" + Arrays.toString( offsets ) + "]";
115 }
116
117 }