1 /***
2 * Redistribution and use of this software and associated documentation
3 * ("Software"), with or without modification, are permitted provided
4 * that the following conditions are met:
5 *
6 * 1. Redistributions of source code must retain copyright
7 * statements and notices. Redistributions must also contain a
8 * copy of this document.
9 *
10 * 2. Redistributions in binary form must reproduce the
11 * above copyright notice, this list of conditions and the
12 * following disclaimer in the documentation and/or other
13 * materials provided with the distribution.
14 *
15 * 3. The name "Exolab" must not be used to endorse or promote
16 * products derived from this Software without prior written
17 * permission of Exoffice Technologies. For written permission,
18 * please contact info@exolab.org.
19 *
20 * 4. Products derived from this Software may not be called "Exolab"
21 * nor may "Exolab" appear in their names without prior written
22 * permission of Exoffice Technologies. Exolab is a registered
23 * trademark of Exoffice Technologies.
24 *
25 * 5. Due credit should be given to the Exolab Project
26 * (http://www.exolab.org/).
27 *
28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39 * OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Copyright 2000 (C) Exoffice Technologies Inc. All Rights Reserved.
42 */
43
44 package org.exolab.jms.persistence;
45
46
47 import java.sql.Connection;
48 import java.sql.ResultSet;
49 import java.sql.SQLException;
50 import java.sql.Statement;
51
52
53 /***
54 * SQL helper routines
55 *
56 * @version $Revision: 1.3 $ $Date: 2003/07/08 11:38:58 $
57 * @author <a href="mailto:tima@intalio.com">Tim Anderson</a>
58 **/
59 public class SQLHelper {
60
61 public static boolean rollback(Connection connection) {
62 boolean rolledback = false;
63 if (connection != null) {
64 try {
65 connection.rollback();
66 rolledback = true;
67 } catch (SQLException ignore) {
68 }
69 }
70 return rolledback;
71 }
72
73 public static boolean close(Connection connection) {
74 boolean closed = false;
75 if (connection != null) {
76 try {
77 connection.close();
78 closed = true;
79 } catch (SQLException ignore) {
80 }
81 }
82 return closed;
83 }
84
85 public static boolean close(Statement statement) {
86 boolean closed = false;
87 if (statement != null) {
88 try {
89 statement.close();
90 closed = true;
91 } catch (SQLException ignore) {
92 }
93 }
94 return closed;
95 }
96
97 public static boolean close(ResultSet set) {
98 boolean closed = false;
99 if (set != null) {
100 try {
101 set.close();
102 closed = true;
103 } catch (SQLException ignore) {
104 }
105 }
106 return closed;
107 }
108 }
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