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 1.1 2007-08-24 22:17:35 ewestfal Exp $
25 */
26 public class PlatformHsqldbImpl extends PlatformDefaultImpl
27 {
28 private static final String 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 getLastInsertIdentityQuery(String 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 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 }