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AbstractSequenceMaxValueIncrementer (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.jdbc.support.incrementer
Class AbstractSequenceMaxValueIncrementer

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

All Implemented Interfaces:

InitializingBean, DataFieldMaxValueIncrementer

Direct Known Subclasses:

DB2SequenceMaxValueIncrementer, OracleSequenceMaxValueIncrementer, PostgreSQLSequenceMaxValueIncrementer

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public abstract class AbstractSequenceMaxValueIncrementer
extends AbstractDataFieldMaxValueIncrementer

Abstract base class for incrementers that use a database sequence. Subclasses need to provide the database-specific SQL to use.

Since:

26.02.2004

Author:

Juergen Hoeller

See Also:

getSequenceQuery()

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Field Summary

 

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

 

Constructor Summary
AbstractSequenceMaxValueIncrementer()

 

Method Summary
protected  long	getNextKey()           Determine the next key to use, as a long.
protected abstract  String	getSequenceQuery()           Return the database-specific query to use for retrieving a sequence value.

 

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

AbstractSequenceMaxValueIncrementer

public AbstractSequenceMaxValueIncrementer()

Method Detail

getNextKey

protected long getNextKey()
                   throws DataAccessException

Description copied from class: AbstractDataFieldMaxValueIncrementer

Determine the next key to use, as a long.

Specified by:

getNextKey in class AbstractDataFieldMaxValueIncrementer

Returns:

the key to use as a long. It will eventually be converted later in another format by the public concrete methods of this class.

Throws:

DataAccessException

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getSequenceQuery

protected abstract String getSequenceQuery()

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

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