org.springframework.jdbc.support.incrementer

Class SybaseAnywhereMaxValueIncrementer

java.lang.Object

org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer

org.springframework.jdbc.support.incrementer.AbstractColumnMaxValueIncrementer

org.springframework.jdbc.support.incrementer.AbstractIdentityColumnMaxValueIncrementer

org.springframework.jdbc.support.incrementer.SybaseMaxValueIncrementer

org.springframework.jdbc.support.incrementer.SybaseAnywhereMaxValueIncrementer

All Implemented Interfaces:

InitializingBean, DataFieldMaxValueIncrementer

public class SybaseAnywhereMaxValueIncrementer
extends SybaseMaxValueIncrementer

DataFieldMaxValueIncrementer that increments the maximum value of a given Sybase table with the equivalent of an auto-increment column. Note: If you use this class, your table key column should NOT be defined as an IDENTITY column, as the sequence table does the job.

This class is intended to be used with Sybase Anywhere.

The sequence is kept in a table. There should be one sequence table per table that needs an auto-generated key.

Example:

create table tab (id int not null primary key, text varchar(100))
 create table tab_sequence (id bigint identity)
 insert into tab_sequence values(DEFAULT)

If "cacheSize" is set, the intermediate values are served without querying the database. If the server or your application is stopped or crashes or a transaction is rolled back, the unused values will never be served. The maximum hole size in numbering is consequently the value of cacheSize. HINT: Since Sybase Anywhere supports the JDBC 3.0 getGeneratedKeys method, it is recommended to use IDENTITY columns directly in the tables and then using a SimpleJdbcInsert or utilizing a KeyHolder when calling the with the update(PreparedStatementCreator psc, KeyHolder generatedKeyHolder) method of the JdbcTemplate.

Thanks to Tarald Saxi Stormark for the suggestion!

Since:

3.0.5

Author:

Thomas Risberg

Field Summary

Fields inherited from class org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer

paddingLength

Constructor Summary

Constructors

Constructor and Description
SybaseAnywhereMaxValueIncrementer() Default constructor for bean property style usage.
SybaseAnywhereMaxValueIncrementer(javax.sql.DataSource dataSource, java.lang.String incrementerName, java.lang.String columnName) Convenience constructor.

Method Summary

Modifier and Type	Method and Description
protected java.lang.String	getIncrementStatement() Statement to use to increment the "sequence" value.

Methods inherited from class org.springframework.jdbc.support.incrementer.SybaseMaxValueIncrementer

getIdentityStatement

Methods inherited from class org.springframework.jdbc.support.incrementer.AbstractIdentityColumnMaxValueIncrementer

getDeleteStatement, getNextKey, isDeleteSpecificValues, setDeleteSpecificValues

Methods inherited from class org.springframework.jdbc.support.incrementer.AbstractColumnMaxValueIncrementer

afterPropertiesSet, getCacheSize, getColumnName, setCacheSize, setColumnName

Methods inherited from class org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer

getDataSource, getIncrementerName, getPaddingLength, nextIntValue, nextLongValue, nextStringValue, setDataSource, setIncrementerName, setPaddingLength

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SybaseAnywhereMaxValueIncrementer

public SybaseAnywhereMaxValueIncrementer()

Default constructor for bean property style usage.

See Also:

AbstractDataFieldMaxValueIncrementer.setDataSource(javax.sql.DataSource), AbstractDataFieldMaxValueIncrementer.setIncrementerName(java.lang.String), AbstractColumnMaxValueIncrementer.setColumnName(java.lang.String)

SybaseAnywhereMaxValueIncrementer

public SybaseAnywhereMaxValueIncrementer(javax.sql.DataSource dataSource,
                                         java.lang.String incrementerName,
                                         java.lang.String columnName)

Convenience constructor.

Parameters:

dataSource - the DataSource to use

incrementerName - the name of the sequence/table to use

columnName - the name of the column in the sequence table to use

Method Detail

getIncrementStatement

protected java.lang.String getIncrementStatement()

Description copied from class: AbstractIdentityColumnMaxValueIncrementer

Statement to use to increment the "sequence" value.

Overrides:

getIncrementStatement in class SybaseMaxValueIncrementer

Returns:

the SQL statement to use