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Java > Open Source Codes > org > snipsnap > jdbc > LazyDataSource


1 /*
2  * This file is part of "SnipSnap Wiki/Weblog".
3  *
4  * Copyright (c) 2002 Stephan J. Schmidt, Matthias L. Jugel
5  * All Rights Reserved.
6  *
7  * Please visit http://snipsnap.org/ for updates and contact.
8  *
9  * --LICENSE NOTICE--
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License
12  * as published by the Free Software Foundation; either version 2
13  * of the License, or (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23  * --LICENSE NOTICE--
24  */

25
26 package org.snipsnap.jdbc;
27
28 import org.snipsnap.util.ConnectionManager;
29
30 import javax.sql.DataSource JavaDoc;
31 import java.io.PrintWriter JavaDoc;
32 import java.sql.Connection JavaDoc;
33 import java.sql.SQLException JavaDoc;
34
35 /**
36  * Wraps a datasource to get lazy initialization
37  *
38  * @author stephan
39  * @version $Id: LazyDataSource.java 1257 2003-12-11 13:36:55Z leo $
40  */

41
42 public class LazyDataSource implements DataSource JavaDoc {
43   private DataSource JavaDoc ds;
44
45   private DataSource JavaDoc getDataSource() {
46     if (null == ds) {
47       ds = ConnectionManager.getDataSource();
48     }
49     return ds;
50   }
51
52   public Connection JavaDoc getConnection() throws SQLException JavaDoc {
53     return getDataSource().getConnection();
54   }
55
56   public Connection JavaDoc getConnection(String JavaDoc username, String JavaDoc password)
57       throws SQLException JavaDoc {
58     return getDataSource().getConnection(username, password);
59   }
60
61   public PrintWriter JavaDoc getLogWriter() throws SQLException JavaDoc {
62     return getDataSource().getLogWriter();
63   }
64
65   public void setLogWriter(PrintWriter JavaDoc out) throws SQLException JavaDoc {
66     getDataSource().setLogWriter(out);
67   }
68
69   public void setLoginTimeout(int seconds) throws SQLException JavaDoc {
70     getDataSource().setLoginTimeout(seconds);
71   }
72
73   public int getLoginTimeout() throws SQLException JavaDoc {
74     return getDataSource().getLoginTimeout();
75   }
76
77 }
78
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