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Java > Open Source Codes > org > myoodb > core > command > TransactionCommand


1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (C) 2003-@year@ by Thomas M. Hazel, MyOODB (www.myoodb.org)
4 //
5 // All Rights Reserved
6 //
7 // This program is free software; you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License and GNU Library
9 // General Public License as published by the Free Software Foundation;
10 // either version 2, or (at your option) any later version.
11 //
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License and GNU Library General Public License
16 // for more details.
17 //
18 // You should have received a copy of the GNU General Public License
19 // and GNU Library General Public License along with this program; if
20 // not, write to the Free Software Foundation, 675 Mass Ave, Cambridge,
21 // MA 02139, USA.
22 //
23 ///////////////////////////////////////////////////////////////////////////////
24 package org.myoodb.core.command;
25
26 import java.io.*;
27
28 import org.myoodb.core.*;
29
30 public class TransactionCommand extends AbstractCommand implements Externalizable
31 {
32     public final static int REQUEST_BEGIN = 1;
33     public final static int REQUEST_PREPARE = 2;
34     public final static int REQUEST_COMMIT = 3;
35     public final static int REQUEST_ABORT = 4;
36     public final static int REQUEST_STATUS = 5;
37
38     private int m_request;
39
40     public TransactionCommand()
41     {
42     }
43
44     public TransactionCommand(int request)
45     {
46         m_request = request;
47     }
48
49     public int getRequest()
50     {
51         return m_request;
52     }
53
54     public void process(AbstractTransaction tx) throws Exception JavaDoc
55     {
56     }
57
58     public void writeExternal(ObjectOutput out) throws IOException
59     {
60         out.writeInt(m_request);
61     }
62
63     public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException JavaDoc
64     {
65         m_request = in.readInt();
66     }
67 }
68
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