001/* 002 * Copyright 2002-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.jdbc.support.incrementer; 018 019import javax.sql.DataSource; 020 021/** 022 * {@link DataFieldMaxValueIncrementer} that retrieves the next value 023 * of a given H2 sequence. 024 * 025 * @author Thomas Risberg 026 * @since 2.5 027 */ 028public class H2SequenceMaxValueIncrementer extends AbstractSequenceMaxValueIncrementer { 029 030 /** 031 * Default constructor for bean property style usage. 032 * @see #setDataSource 033 * @see #setIncrementerName 034 */ 035 public H2SequenceMaxValueIncrementer() { 036 } 037 038 /** 039 * Convenience constructor. 040 * @param dataSource the DataSource to use 041 * @param incrementerName the name of the sequence/table to use 042 */ 043 public H2SequenceMaxValueIncrementer(DataSource dataSource, String incrementerName) { 044 super(dataSource, incrementerName); 045 } 046 047 048 @Override 049 protected String getSequenceQuery() { 050 return "select " + getIncrementerName() + ".nextval from dual"; 051 } 052 053}