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Java > Open Source Codes > org > objectweb > cjdbc > console > text > commands > sqlconsole > Rollback


1 /**
2  * C-JDBC: Clustered JDBC.
3  * Copyright (C) 2002-2004 French National Institute For Research In Computer
4  * Science And Control (INRIA).
5  * Contact: c-jdbc@objectweb.org
6  *
7  * This library is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU Lesser General Public License as published by the
9  * Free Software Foundation; either version 2.1 of the License, or any later
10  * version.
11  *
12  * This library is distributed in the hope that it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
15  * for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public License
18  * along with this library; if not, write to the Free Software Foundation,
19  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20  *
21  * Initial developer(s): Jeff Mesnil
22  * Contributor(s): ______________________.
23  */

24
25 package org.objectweb.cjdbc.console.text.commands.sqlconsole;
26
27 import java.io.IOException JavaDoc;
28 import java.sql.Connection JavaDoc;
29 import java.sql.Savepoint JavaDoc;
30
31 import org.objectweb.cjdbc.common.i18n.ConsoleTranslate;
32 import org.objectweb.cjdbc.console.text.ConsoleException;
33 import org.objectweb.cjdbc.console.text.commands.ConsoleCommand;
34 import org.objectweb.cjdbc.console.text.module.VirtualDatabaseConsole;
35
36 /**
37  * This class defines a "rollback" sql command
38  *
39  * @author <a HREF="mailto:jeff.mesnil@emicnetworks.com">Jeff Mesnil</a>
40  */

41 public class Rollback extends ConsoleCommand
42 {
43
44   /**
45    * Creates a new <code>Rollback</code> object
46    *
47    * @param module the command is attached to
48    */

49   public Rollback(VirtualDatabaseConsole module)
50   {
51     super(module);
52   }
53
54   /**
55    * @see org.objectweb.cjdbc.console.text.commands.ConsoleCommand#parse(java.lang.String)
56    */

57   public void parse(String JavaDoc commandText) throws IOException JavaDoc, ConsoleException
58   {
59     Connection JavaDoc connection = ((VirtualDatabaseConsole) module).getConnection();
60
61     String JavaDoc savePointName = commandText.trim();
62
63     try
64     {
65       if ("".equals(savePointName))
66       {
67         connection.rollback();
68         console.println(ConsoleTranslate.get("sql.command.rollback.done"));
69       }
70       else
71       {
72         Savepoint JavaDoc savepoint = ((VirtualDatabaseConsole) module)
73             .getSavePoint(savePointName);
74         if (savepoint == null)
75         {
76           console.printError(ConsoleTranslate
77               .get("sql.command.rollback.no.savepoint", savePointName));
78           return;
79         }
80         connection.rollback(savepoint);
81         console.println(ConsoleTranslate.get("sql.command.rollback.to.savepoint", savePointName));
82       }
83       connection.setAutoCommit(true);
84     }
85     catch (Exception JavaDoc e)
86     {
87       console.printError(ConsoleTranslate.get("sql.display.exception", e), e);
88     }
89
90   }
91
92   /**
93    * @see org.objectweb.cjdbc.console.text.commands.ConsoleCommand#getCommandName()
94    */

95   public String JavaDoc getCommandName()
96   {
97     return "rollback";
98   }
99
100   /**
101    * @see org.objectweb.cjdbc.console.text.commands.ConsoleCommand#getCommandParameters()
102    */

103   public String JavaDoc getCommandParameters()
104   {
105     return ConsoleTranslate.get("sql.command.rollback.params");
106   }
107
108   /**
109    * @see org.objectweb.cjdbc.console.text.commands.ConsoleCommand#getCommandDescription()
110    */

111   public String JavaDoc getCommandDescription()
112   {
113     return ConsoleTranslate.get("sql.command.rollback.description");
114   }
115 }
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