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Java > Open Source Codes > org > objectweb > jorm > mapper > rdb > lib > ConnectionSpecJDBC


1 /**
2  * JORM: an implementation of a generic mapping system for persistent Java
3  * objects. Two mapping are supported: to RDBMS and to binary files.
4  * Copyright (C) 2001-2003 France Telecom R&D - INRIA
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  * Contact: jorm-team@objectweb.org
21  *
22  */
23
24 package org.objectweb.jorm.mapper.rdb.lib;
25
26 import org.objectweb.jorm.api.PException;
27
28 import javax.sql.DataSource JavaDoc;
29 import java.sql.DriverManager JavaDoc;
30 import java.sql.SQLException JavaDoc;
31 import java.sql.Connection JavaDoc;
32 import java.io.PrintWriter JavaDoc;
33
34 /**
35  * Specifies the characteristics of the requested connections.
36  * @author P. Dechamboux
37  */
38 public class ConnectionSpecJDBC implements DataSource JavaDoc {
39     String JavaDoc url;
40     String JavaDoc user = null;
41     String JavaDoc passwd = null;
42     PrintWriter JavaDoc pw;
43     int timeout = 0;
44
45     /**
46      * Construct a ConnectionSpecJDBC knowing the DB url.
47      */
48     public ConnectionSpecJDBC(String JavaDoc url, String JavaDoc driver) throws PException {
49         this.url = url;
50         try {
51             Class.forName(driver);
52         } catch (ClassNotFoundException JavaDoc e) {
53             throw new PException(e, "Unable to load JDBC driver class: " + driver);
54         }
55     }
56
57     /**
58      * Construct a ConnectionSpecJDBC knowing the DB url, user, and password.
59      */
60     public ConnectionSpecJDBC(String JavaDoc url, String JavaDoc driver, String JavaDoc user, String JavaDoc passwd)
61             throws PException {
62         this(url, driver);
63         this.user = user;
64         this.passwd = passwd;
65     }
66
67
68     // IMPLEMENTATION OF THE DataSource INTERFACE //
69 //--------------------------------------------//
70
71     public Connection JavaDoc getConnection() throws SQLException JavaDoc {
72         if (user != null && passwd != null) {
73             return DriverManager.getConnection(url, user, passwd);
74         } else {
75             return DriverManager.getConnection(url);
76         }
77     }
78
79     public Connection JavaDoc getConnection(String JavaDoc username, String JavaDoc password)
80             throws SQLException JavaDoc {
81         return DriverManager.getConnection(url, username, password);
82     }
83
84     public PrintWriter JavaDoc getLogWriter() throws SQLException JavaDoc {
85         return pw;
86     }
87
88     public void setLogWriter(PrintWriter JavaDoc out) throws SQLException JavaDoc {
89         pw = out;
90     }
91
92     public void setLoginTimeout(int seconds) throws SQLException JavaDoc {
93         timeout = seconds;
94     }
95
96     public int getLoginTimeout() throws SQLException JavaDoc {
97         return timeout;
98     }
99 }
100
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