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Java > Open Source Codes > com > db4o > TransactionObjectCarrier


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */

21 package com.db4o;
22
23 /**
24  * TODO: Check if all time-consuming stuff is overridden!
25  */

26 class TransactionObjectCarrier extends YapFileTransaction{
27     
28     TransactionObjectCarrier(YapStream a_stream, Transaction a_parent) {
29         super(a_stream, a_parent);
30     }
31     
32     public void commit() {
33         // do nothing
34
}
35     
36     public void slotFreeOnCommit(int a_id, int a_address, int a_length) {
37 // do nothing
38
}
39     
40     void slotFreeOnRollback(int a_id, int a_address, int a_length) {
41 // do nothing
42
}
43     
44     void slotFreeOnRollbackSetPointer(int a_id, int a_address, int a_length) {
45         setPointer(a_id, a_address, a_length);
46     }
47     
48     void slotFreeOnRollbackCommitSetPointer(int a_id, int newAddress, int newLength) {
49         setPointer(a_id, newAddress, newLength);
50     }
51     
52     void slotFreePointerOnCommit(int a_id, int a_address, int a_length) {
53 // do nothing
54
}
55     
56     public void setPointer(int a_id, int a_address, int a_length) {
57         writePointer(a_id, a_address, a_length);
58     }
59     
60     boolean supportsVirtualFields(){
61         return false;
62     }
63     
64     
65     
66
67 }
68
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