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Java > Open Source Codes > org > apache > ojb > broker > platforms > PlatformHsqldbImpl


1 package org.apache.ojb.broker.platforms;
2
3 /* Copyright 2002-2005 The Apache Software Foundation
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18
19 /**
20  * This class extends <code>PlatformDefaultImpl</code> and defines specific
21  * behavior for the Hsqldb platform.
22  *
23  * @author <a HREF="mailto:thma@apache.org">Thomas Mahler<a>
24  * @version $Id: PlatformHsqldbImpl.java,v 1.7.2.3 2005/08/16 15:04:39 aclute Exp $
25  */
26 public class PlatformHsqldbImpl extends PlatformDefaultImpl
27 {
28     private static final String JavaDoc LAST_INSERT = "CALL IDENTITY()";
29
30     /**
31      * Get join syntax type for this RDBMS - one on of the constants from JoinSyntaxType interface
32      */
33     public byte getJoinSyntaxType()
34     {
35         return SQL92_NOPAREN_JOIN_SYNTAX;
36     }
37
38     public String JavaDoc getLastInsertIdentityQuery(String JavaDoc tableName)
39     {
40         return LAST_INSERT;
41     }
42     
43     /* (non-Javadoc)
44      * @see org.apache.ojb.broker.platforms.Platform#addPagingSql(java.lang.StringBuffer)
45      */
46     public void addPagingSql(StringBuffer JavaDoc anSqlString)
47     {
48         anSqlString.insert(6, " LIMIT ? ? ");
49     }
50
51     /* (non-Javadoc)
52      * @see org.apache.ojb.broker.platforms.Platform#bindPagingParametersFirst()
53      */
54     public boolean bindPagingParametersFirst()
55     {
56         return true;
57     }
58
59     /* (non-Javadoc)
60      * @see org.apache.ojb.broker.platforms.Platform#supportsPaging()
61      */
62     public boolean supportsPaging()
63     {
64         return true;
65     }
66
67 // arminw: Check is not necessary any longer
68 // /**
69 // * HSQLDB does not implement CallableStatement.
70 // *
71 // * @see org.apache.ojb.broker.platforms.Platform#isCallableStatement(java.sql.PreparedStatement)
72 // */
73 // public boolean isCallableStatement(PreparedStatement stmt)
74 // {
75 // return false;
76 // }
77
78 }
79
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