Class OracleSequenceSupport

java.lang.Object

org.hibernate.dialect.sequence.NextvalSequenceSupport

org.hibernate.dialect.sequence.OracleSequenceSupport

All Implemented Interfaces:

SequenceSupport

public final class OracleSequenceSupport
extends NextvalSequenceSupport

Sequence support for OracleDialect.

See Also:

• Oracle Database Documentation

Constructor Summary

Constructors

Constructor	Description
OracleSequenceSupport(DatabaseVersion version)

Method Summary

Modifier and Type	Method	Description
String	getDropSequenceString(String sequenceName)	Typically, dialects which support sequences can drop a sequence with a single command.
String	getFromDual()
static SequenceSupport	getInstance(Dialect dialect)
String	getRestartSequenceString(String sequenceName, long startWith)	A DDL statement to restart a sequence with a given value.
boolean	sometimesNeedsStartingValue()	Do we need to explicitly specify minvalue or maxvalue when the initial value doesn't have the same sign as the increment?

Methods inherited from class NextvalSequenceSupport

getSelectSequenceNextValString, getSelectSequencePreviousValString

Methods inherited from class Object

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

Methods inherited from interface SequenceSupport

getCreateSequenceString, getCreateSequenceString, getCreateSequenceStrings, getCreateSequenceStrings, getDropSequenceStrings, getSequenceNextValString, getSequenceNextValString, getSequencePreviousValString, startingValue, supportsPooledSequences, supportsSequences

Constructor Details

OracleSequenceSupport

public OracleSequenceSupport(DatabaseVersion version)

Method Details

getInstance

public static SequenceSupport getInstance(Dialect dialect)

getFromDual

public String getFromDual()

sometimesNeedsStartingValue

public boolean sometimesNeedsStartingValue()

Description copied from interface: SequenceSupport

Do we need to explicitly specify minvalue or maxvalue when the initial value doesn't have the same sign as the increment?

getDropSequenceString

public String getDropSequenceString(String sequenceName)
                             throws MappingException

Description copied from interface: SequenceSupport

Typically, dialects which support sequences can drop a sequence with a single command. This is a convenience form of SequenceSupport.getDropSequenceStrings(String) which facilitates that.

Dialects which support sequences and can drop a sequence in a single command need *only* override this method. Dialects which support sequences but require multiple commands to drop a sequence should instead override SequenceSupport.getDropSequenceStrings(String).

Parameters:

sequenceName - The name of the sequence

Returns:

The sequence drop commands

Throws:

MappingException - If sequences are not supported.

getRestartSequenceString

public String getRestartSequenceString(String sequenceName,
 long startWith)

Description copied from interface: SequenceSupport

A DDL statement to restart a sequence with a given value.

Parameters:

sequenceName - The name of the sequence

startWith - The value to restart at

Returns:

The alter sequence ... restart command