Spring Framework

org.springframework.jdbc.support.incrementer
Class SybaseAnywhereMaxValueIncrementer

java.lang.Object
  extended by org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer
      extended by org.springframework.jdbc.support.incrementer.AbstractColumnMaxValueIncrementer
          extended by org.springframework.jdbc.support.incrementer.SybaseMaxValueIncrementer
              extended by 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 SQL Anywhere 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
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
protected  java.lang.String getIncrementStatement()
          Statement to use to increment the "sequence" value.
 
Methods inherited from class org.springframework.jdbc.support.incrementer.SybaseMaxValueIncrementer
getNextKey
 
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: SybaseMaxValueIncrementer
Statement to use to increment the "sequence" value. Can be overridden by sub-classes.

Overrides:
getIncrementStatement in class SybaseMaxValueIncrementer
Returns:
The SQL statement to use

Spring Framework