HsqlSequenceMaxValueIncrementer

extends AbstractSequenceMaxValueIncrementer

java.lang.Object
↳	org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer
	↳	org.springframework.jdbc.support.incrementer.AbstractSequenceMaxValueIncrementer
		↳	org.springframework.jdbc.support.incrementer.HsqlSequenceMaxValueIncrementer

Class Overview

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.

Inherited Fields

Public Constructors
	HsqlSequenceMaxValueIncrementer() Default constructor for bean property style usage.
	HsqlSequenceMaxValueIncrementer(DataSource dataSource, String incrementerName) Convenience constructor.

Protected Methods
String	getSequenceQuery() Return the database-specific query to use for retrieving a sequence value.

Inherited Methods

void	afterPropertiesSet() Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
DataSource	getDataSource() Return the data source to retrieve the value from.
String	getIncrementerName() Return the name of the sequence/table.
abstract long	getNextKey() Determine the next key to use, as a long.
int	getPaddingLength() Return the padding length for String values.
int	nextIntValue() Increment the data store field's max value as int.
long	nextLongValue() Increment the data store field's max value as long.
String	nextStringValue() Increment the data store field's max value as String.
void	setDataSource(DataSource dataSource) Set the data source to retrieve the value from.
void	setIncrementerName(String incrementerName) Set the name of the sequence/table.
void	setPaddingLength(int paddingLength) Set the padding length, i.e.

From class java.lang.Object

Default constructor for bean property style usage.

Convenience constructor.

dataSource	the DataSource to use
incrementerName	the name of the sequence/table to use

Return the database-specific query to use for retrieving a sequence value.

The provided SQL is supposed to result in a single row with a single column that allows for extracting a long value.