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Java > Open Source Codes > org > apache > torque > adapter > DBNone


1 package org.apache.torque.adapter;
2
3 /*
4  * Licensed to the Apache Software Foundation (ASF) under one
5  * or more contributor license agreements. See the NOTICE file
6  * distributed with this work for additional information
7  * regarding copyright ownership. The ASF licenses this file
8  * to you under the Apache License, Version 2.0 (the
9  * "License"); you may not use this file except in compliance
10  * with the License. You may obtain a copy of the License at
11  *
12  * http://www.apache.org/licenses/LICENSE-2.0
13  *
14  * Unless required by applicable law or agreed to in writing,
15  * software distributed under the License is distributed on an
16  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17  * KIND, either express or implied. See the License for the
18  * specific language governing permissions and limitations
19  * under the License.
20  */
21
22 import java.sql.Connection JavaDoc;
23 import java.sql.SQLException JavaDoc;
24
25 /**
26  * This DatabaseHandler is used when you do not have a database
27  * installed.
28  *
29  * @author <a HREF="mailto:jon@clearink.com">Jon S. Stevens</a>
30  * @author <a HREF="mailto:bmclaugh@algx.net">Brett McLaughlin</a>
31  * @version $Id: DBNone.java 473821 2006-11-11 22:37:25Z tv $
32  */
33 public class DBNone extends AbstractDBAdapter
34 {
35     /**
36      * Serial version
37      */
38     private static final long serialVersionUID = -285009315025818009L;
39
40     /**
41      * Empty protected constructor.
42      */
43     protected DBNone()
44     {
45     }
46
47     /**
48      * @return null
49      */
50     public Connection JavaDoc getConnection()
51     {
52         return null;
53     }
54
55     /**
56      * This method is used to ignore case.
57      *
58      * @param in The string to transform to upper case.
59      * @return The upper case string.
60      */
61     public String JavaDoc toUpperCase(String JavaDoc in)
62     {
63         return in;
64     }
65
66     /**
67      * This method is used to ignore case.
68      *
69      * @param in The string whose case to ignore.
70      * @return The string in a case that can be ignored.
71      */
72     public String JavaDoc ignoreCase(String JavaDoc in)
73     {
74         return in;
75     }
76
77     /**
78      * @see org.apache.torque.adapter.DB#getIDMethodType()
79      */
80     public String JavaDoc getIDMethodType()
81     {
82         return NO_ID_METHOD;
83     }
84
85     /**
86      * @see org.apache.torque.adapter.DB#getIDMethodSQL(Object obj)
87      */
88     public String JavaDoc getIDMethodSQL(Object JavaDoc obj)
89     {
90         return null;
91     }
92
93     /**
94      * Locks the specified table.
95      *
96      * @param con The JDBC connection to use.
97      * @param table The name of the table to lock.
98      * @exception SQLException No Statement could be created or executed.
99      */
100     public void lockTable(Connection JavaDoc con, String JavaDoc table) throws SQLException JavaDoc
101     {
102     }
103
104     /**
105      * Unlocks the specified table.
106      *
107      * @param con The JDBC connection to use.
108      * @param table The name of the table to unlock.
109      * @exception SQLException No Statement could be created or executed.
110      */
111     public void unlockTable(Connection JavaDoc con, String JavaDoc table) throws SQLException JavaDoc
112     {
113     }
114 }
115
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