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Java > Open Source Codes > org > objectweb > jalisto > se > api > Transaction


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.api;
25
26 /**
27  * The Transaction interface allows operations to be performed against the transaction in the target Transaction object.
28  * A Transaction object is associated to a target Session.
29  */
30 public interface Transaction {
31
32     /**
33      * Start the transaction represented by this Transaction object.
34      *
35      * @throws org.objectweb.jalisto.se.exception.TransactionException
36      * Thrown if the transaction is already active.
37      */
38     void begin();
39
40     /**
41      * Complete the transaction represented by this Transaction object.
42      *
43      * @throws org.objectweb.jalisto.se.exception.TransactionException
44      * Thrown if the transaction is inactive.
45      */
46     void commit();
47
48     /**
49      * Rollback the transaction represented by this Transaction object.
50      *
51      * @throws org.objectweb.jalisto.se.exception.TransactionException
52      * Thrown if the transaction is inactive.
53      */
54     void rollback();
55
56     /**
57      * Set the transaction represented by this Transaction object to optimistic mode.
58      *
59      * @throws org.objectweb.jalisto.se.exception.TransactionException
60      * Thrown if the transaction is already active.
61      */
62     void setOptimistic();
63
64     /**
65      * Set the transaction represented by this Transaction object to pessimistic mode.
66      *
67      * @throws org.objectweb.jalisto.se.exception.TransactionException
68      * Thrown if the transaction is already active.
69      */
70     void setPessimistic();
71
72     /**
73      * Tell if we are in an active transaction.
74      *
75      * @return true if the transaction represented by this Transaction object is active; otherwise false.
76      */
77     boolean isActive();
78
79     /**
80      * Get the transaction's associated Jalisto ressource.
81      *
82      * @return Session object associated with this Transaction.
83      */
84     Session getSession();
85 }
86
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