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Java > Open Source Codes > net > jforum > DataSourceConnection


1 /*
2  * Copyright (c) Rafael Steil
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms,
6  * with or without modification, are permitted provided
7  * that the following conditions are met:
8  *
9  * 1) Redistributions of source code must retain the above
10  * copyright notice, this list of conditions and the
11  * following disclaimer.
12  * 2) Redistributions in binary form must reproduce the
13  * above copyright notice, this list of conditions and
14  * the following disclaimer in the documentation and/or
15  * other materials provided with the distribution.
16  * 3) Neither the name of "Rafael Steil" nor
17  * the names of its contributors may be used to endorse
18  * or promote products derived from this software without
19  * specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
22  * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
23  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
24  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
27  * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
32  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
34  * IN CONTRACT, STRICT LIABILITY, OR TORT
35  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
36  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
37  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
38  *
39  * Created on Jan 7, 2005 7:44:40 PM
40  *
41  * The JForum Project
42  * http://www.jforum.net
43  */

44 package net.jforum;
45
46 import java.sql.Connection JavaDoc;
47
48 import javax.naming.Context JavaDoc;
49 import javax.naming.InitialContext JavaDoc;
50 import javax.sql.DataSource JavaDoc;
51
52 import net.jforum.exceptions.DatabaseException;
53 import net.jforum.util.preferences.ConfigKeys;
54 import net.jforum.util.preferences.SystemGlobals;
55
56 /**
57  * DataSource connection implementation for JForum.
58  * The datasourcename should be set in the key
59  * <code>database.datasource.name</code> at
60  * SystemGlobals.properties.
61  *
62  * @author Rafael Steil
63  * @version $Id: DataSourceConnection.java,v 1.7 2005/11/30 19:41:28 rafaelsteil Exp $
64  */

65 public class DataSourceConnection extends DBConnection
66 {
67     private DataSource JavaDoc ds;
68     
69     /**
70      * @see net.jforum.DBConnection#init()
71      */

72     public void init() throws Exception JavaDoc
73     {
74         Context JavaDoc context = new InitialContext JavaDoc();
75         this.ds = (DataSource JavaDoc)context.lookup(SystemGlobals.getValue(
76                 ConfigKeys.DATABASE_DATASOURCE_NAME));
77     }
78     /**
79      * @see net.jforum.DBConnection#getConnection()
80      */

81     public Connection JavaDoc getConnection()
82     {
83         try {
84             return this.ds.getConnection();
85         }
86         catch (Exception JavaDoc e) {
87             e.printStackTrace();
88             throw new DatabaseException(e);
89         }
90     }
91
92     /**
93      * @see net.jforum.DBConnection#releaseConnection(java.sql.Connection)
94      */

95     public void releaseConnection(Connection JavaDoc conn)
96     {
97         try {
98             conn.close();
99         }
100         catch (Exception JavaDoc e) {}
101     }
102
103     /**
104      * @see net.jforum.DBConnection#realReleaseAllConnections()
105      */

106     public void realReleaseAllConnections() throws Exception JavaDoc {}
107 }
108
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