org.springframework.jdbc.support.incrementer.HsqlSequenceMaxValueIncrementer Maven / Gradle / Ivy
/*
* Copyright 2002-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.jdbc.support.incrementer;
import javax.sql.DataSource;
/**
* {@link DataFieldMaxValueIncrementer} that retrieves the next value
* of a given HSQL sequence.
*
* Thanks to Guillaume Bilodeau for the suggestion!
*
*
NOTE: This is an alternative to using a regular table to support
* generating unique keys that was necessary in previous versions of HSQL.
*
* @author Thomas Risberg
* @since 2.5
* @see HsqlMaxValueIncrementer
*/
public class HsqlSequenceMaxValueIncrementer extends AbstractSequenceMaxValueIncrementer {
/**
* Default constructor for bean property style usage.
* @see #setDataSource
* @see #setIncrementerName
*/
public HsqlSequenceMaxValueIncrementer() {
}
/**
* Convenience constructor.
* @param dataSource the DataSource to use
* @param incrementerName the name of the sequence/table to use
*/
public HsqlSequenceMaxValueIncrementer(DataSource dataSource, String incrementerName) {
super(dataSource, incrementerName);
}
@Override
protected String getSequenceQuery() {
return "call next value for " + getIncrementerName();
}
}