Package org.hibernate.dialect.sequence

Class DerbySequenceSupport

java.lang.Object

org.hibernate.dialect.sequence.ANSISequenceSupport

org.hibernate.dialect.sequence.DB2SequenceSupport

org.hibernate.dialect.sequence.DerbySequenceSupport

All Implemented Interfaces:

SequenceSupport

public final class DerbySequenceSupport
extends DB2SequenceSupport

Sequence support for DerbyDialect.

Author:

Christian Beikov

Field Summary

Fields

Modifier and Type	Field	Description
static final SequenceSupport	INSTANCE

Constructor Summary

Constructors

Constructor	Description
DerbySequenceSupport()

Method Summary

Modifier and Type	Method	Description
String	getSelectSequencePreviousValString(String sequenceName)	Generate the select expression fragment that will retrieve the previous value of a sequence as part of another (typically DML) statement.

Methods inherited from class org.hibernate.dialect.sequence.DB2SequenceSupport

getDropSequenceString, getSequenceNextValString, getSequencePreviousValString

Methods inherited from class org.hibernate.dialect.sequence.ANSISequenceSupport

getSelectSequenceNextValString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.dialect.sequence.SequenceSupport

getCreateSequenceString, getCreateSequenceString, getCreateSequenceStrings, getDropSequenceStrings, getFromDual, getSequenceNextValString, sometimesNeedsStartingValue, startingValue, supportsPooledSequences, supportsSequences

Field Details

INSTANCE

public static final SequenceSupport INSTANCE

Constructor Details

DerbySequenceSupport

public DerbySequenceSupport()

Method Details

getSelectSequencePreviousValString

public String getSelectSequencePreviousValString(String sequenceName)
                                          throws MappingException

Description copied from interface: SequenceSupport

Generate the select expression fragment that will retrieve the previous value of a sequence as part of another (typically DML) statement.

This differs from SequenceSupport.getSequencePreviousValString(String) in that it must return an expression usable within another statement.

Specified by:

getSelectSequencePreviousValString in interface SequenceSupport

Overrides:

getSelectSequencePreviousValString in class DB2SequenceSupport

Parameters:

sequenceName - the name of the sequence

Returns:

The "previous value" fragment.

Throws:

MappingException - If sequences are not supported.