1 package org.apache.torque.adapter;
2
3 /* ====================================================================
4 * The Apache Software License, Version 1.1
5 *
6 * Copyright (c) 2001 The Apache Software Foundation. All rights
7 * reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. The end-user documentation included with the redistribution,
22 * if any, must include the following acknowledgment:
23 * "This product includes software developed by the
24 * Apache Software Foundation (http://www.apache.org/)."
25 * Alternately, this acknowledgment may appear in the software itself,
26 * if and wherever such third-party acknowledgments normally appear.
27 *
28 * 4. The names "Apache" and "Apache Software Foundation" and
29 * "Apache Turbine" must not be used to endorse or promote products
30 * derived from this software without prior written permission. For
31 * written permission, please contact apache@apache.org.
32 *
33 * 5. Products derived from this software may not be called "Apache",
34 * "Apache Turbine", nor may "Apache" appear in their name, without
35 * prior written permission of the Apache Software Foundation.
36 *
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 * ====================================================================
50 *
51 * This software consists of voluntary contributions made by many
52 * individuals on behalf of the Apache Software Foundation. For more
53 * information on the Apache Software Foundation, please see
54 * <http://www.apache.org/>.
55 */
56
57 import java.sql.Connection;
58 import java.sql.SQLException;
59
60 /***
61 * This DatabaseHandler is used when you do not have a database
62 * installed.
63 *
64 * @author <a href="mailto:jon@clearink.com">Jon S. Stevens</a>
65 * @author <a href="mailto:bmclaugh@algx.net">Brett McLaughlin</a>
66 * @version $Id: DBNone.java,v 1.7 2003/08/25 21:56:10 mpoeschl Exp $
67 */
68 public class DBNone extends DB
69 {
70
71 /***
72 * Empty protected constructor.
73 */
74 protected DBNone()
75 {
76 }
77
78 /***
79 * @return null
80 */
81 public Connection getConnection()
82 {
83 return null;
84 }
85
86 /***
87 * does nothing.
88 * @deprecated simply remove the call from your code
89 */
90 public void init(String url, String username, String password)
91 {
92 }
93
94 /***
95 * This method is used to ignore case.
96 *
97 * @param in The string to transform to upper case.
98 * @return The upper case string.
99 */
100 public String toUpperCase(String in)
101 {
102 return in;
103 }
104
105 /***
106 * This method is used to ignore case.
107 *
108 * @param in The string whose case to ignore.
109 * @return The string in a case that can be ignored.
110 */
111 public String ignoreCase(String in)
112 {
113 return in;
114 }
115
116 /***
117 * @see org.apache.torque.adapter.DB#getIDMethodType()
118 */
119 public String getIDMethodType()
120 {
121 return NO_ID_METHOD;
122 }
123
124 /***
125 * @see org.apache.torque.adapter.DB#getIDMethodSQL(Object obj)
126 */
127 public String getIDMethodSQL(Object obj)
128 {
129 return null;
130 }
131
132 /***
133 * Locks the specified table.
134 *
135 * @param con The JDBC connection to use.
136 * @param table The name of the table to lock.
137 * @exception SQLException No Statement could be created or executed.
138 */
139 public void lockTable(Connection con, String table) throws SQLException
140 {
141 }
142
143 /***
144 * Unlocks the specified table.
145 *
146 * @param con The JDBC connection to use.
147 * @param table The name of the table to unlock.
148 * @exception SQLException No Statement could be created or executed.
149 */
150 public void unlockTable(Connection con, String table) throws SQLException
151 {
152 }
153 }