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Java > Open Source Codes > org > springframework > jdbc > support > incrementer > OracleSequenceMaxValueIncrementer


1 /*
2  * Copyright 2002-2005 the original author or authors.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.springframework.jdbc.support.incrementer;
18
19 import javax.sql.DataSource JavaDoc;
20
21 /**
22  * DataFieldMaxValueIncrementer that retrieves the next value of a given Oracle sequence.
23  *
24  * @author Dmitriy Kopylenko
25  * @author Thomas Risberg
26  * @author Juergen Hoeller
27  */
28 public class OracleSequenceMaxValueIncrementer extends AbstractSequenceMaxValueIncrementer {
29
30     /**
31      * Default constructor.
32      **/
33     public OracleSequenceMaxValueIncrementer() {
34     }
35
36     /**
37      * Convenience constructor.
38      * @param ds the DataSource to use
39      * @param incrementerName the name of the sequence to use
40      */
41     public OracleSequenceMaxValueIncrementer(DataSource JavaDoc ds, String JavaDoc incrementerName) {
42         setDataSource(ds);
43         setIncrementerName(incrementerName);
44         afterPropertiesSet();
45     }
46
47     protected String JavaDoc getSequenceQuery() {
48         return "select " + getIncrementerName() + ".nextval from dual";
49     }
50
51 }
52
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