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Java > Open Source Codes > org > objectweb > jalisto > se > storage > raf > log > backup > LogBoundary


1 /*
2  * Jalisto - JAva LIght STOrage
3  * Copyright (C) 2000-2005 Xcalia http://www.xcalia.com
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
18  *
19  * Xcalia
20  * 71, rue Desnouettes
21  * 75014 Paris - France
22  * http://www.xcalia.com
23  */
24 package org.objectweb.jalisto.se.storage.raf.log.backup;
25
26 import java.io.*;
27
28 public class LogBoundary extends LogObject {
29
30     public LogBoundary(boolean begin) {
31         isBegin = begin;
32     }
33
34     public boolean isBegin() {
35         return isBegin;
36     }
37
38     public boolean isEnd() {
39         return (!isBegin);
40     }
41
42     public Object JavaDoc internalReadFrom(DataInput in) throws IOException {
43         return null;
44     }
45
46     public void writeTo(DataOutput out) throws IOException {
47         LogObject.writeLogBoundary(out, isBegin);
48     }
49
50     public void undoOn(RandomAccessFile raf) throws IOException {
51     }
52
53     public void corrupt(RandomAccessFile raf) throws IOException {
54     }
55
56     public String JavaDoc toString() {
57         StringBuffer JavaDoc sb = new StringBuffer JavaDoc();
58         sb.append("LogBoundary(");
59         if (isBegin) {
60             sb.append("begin");
61         } else {
62             sb.append("end");
63         }
64         sb.append(")");
65         return sb.toString();
66     }
67
68     private boolean isBegin;
69
70     static final long serialVersionUID = -7699636669241161459L;
71 }
72
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