Class DelegatingTemporalTableSupport

java.lang.Object

org.hibernate.dialect.temporal.spi.DelegatingTemporalTableSupport

All Implemented Interfaces:

TemporalTableSupport

@SPI(IMPLEMENT)
public abstract class DelegatingTemporalTableSupport
extends Object
implements TemporalTableSupport

Provider base which forwards the complete temporal-table contract to one immutable delegate.

Extend this class when a stock profile matches except for a small number of operations. Override only those differences and let every other operation continue to delegate.

Since:

8.0

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DelegatingTemporalTableSupport(TemporalTableSupport delegate)	Create a selectively overriding strategy around a non-null delegate.

Method Summary

Modifier and Type	Method	Description
boolean	createTemporalTableCheckConstraint(TemporalTableStrategy strategy)	Report whether Hibernate should add its effectivity check constraint for the selected storage strategy.
String	getAsOfOperator(TemporalTableStrategy strategy)	Return the SQL operator placed before a historical instant expression.
TemporalTableStrategy	getDefaultTemporalTableStrategy()	Return the concrete strategy selected when configuration requests TemporalTableStrategy.AUTO.
String	getExtraTemporalTableDeclarations(TemporalTableDdlRequest request)	Render declarations placed inside the temporal table definition.
int	getTemporalColumnPrecision()	Return the default fractional-second precision of temporal effectivity columns.
int	getTemporalColumnType()	Return the SqlTypes code used for temporal effectivity columns.
String	getTemporalExclusionColumnOption()	Return the column option which excludes a column from native temporal versioning, or null when no option is needed.
List<TemporalTableAuxiliaryObject>	getTemporalTableAuxiliaryObjects(TemporalTableDdlRequest request)	Describe, in deterministic order, the schema commands required in addition to the temporal table itself.
String	getTemporalTableOptions(TemporalTableDdlRequest request)	Render the trailing table options for the supplied table.
boolean	supportsNativeTemporalTables()	Report whether the database provides native system-versioned tables.
boolean	supportsTemporalTablePartitioning()	Report whether the strategy can partition current and historical rows.
boolean	suppressesTemporalTablePrimaryKeys(boolean partitioned)	Report whether a partitioned temporal table must omit its primary key.
boolean	useAsOfOperator(TemporalTableStrategy strategy)	Report whether historical queries use TemporalTableSupport.getAsOfOperator(TemporalTableStrategy) for the selected strategy.
boolean	useAsOfOperatorForCurrent(TemporalTableStrategy strategy)	Report whether current-data queries use TemporalTableSupport.getAsOfOperator(TemporalTableStrategy) without an explicit historical instant.
boolean	useTemporalRestriction(TemporalRestrictionRequest request)	Decide whether Hibernate should render effectivity-column restrictions from the supplied ephemeral query facts.

Methods inherited from class Object

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

Constructor Details

DelegatingTemporalTableSupport

@SPI(IMPLEMENT)
protected DelegatingTemporalTableSupport(TemporalTableSupport delegate)

Create a selectively overriding strategy around a non-null delegate.

Method Details

supportsNativeTemporalTables

public boolean supportsNativeTemporalTables()

Description copied from interface: TemporalTableSupport

Report whether the database provides native system-versioned tables.

Specified by:

supportsNativeTemporalTables in interface TemporalTableSupport

getTemporalColumnType

public int getTemporalColumnType()

Description copied from interface: TemporalTableSupport

Return the SqlTypes code used for temporal effectivity columns.

Specified by:

getTemporalColumnType in interface TemporalTableSupport

getTemporalColumnPrecision

public int getTemporalColumnPrecision()

Description copied from interface: TemporalTableSupport

Return the default fractional-second precision of temporal effectivity columns.

Specified by:

getTemporalColumnPrecision in interface TemporalTableSupport

getTemporalTableOptions

@Nullable
public String getTemporalTableOptions(TemporalTableDdlRequest request)

Description copied from interface: TemporalTableSupport

Render the trailing table options for the supplied table. Use every name in the request verbatim and return null when no options are needed.

Specified by:

getTemporalTableOptions in interface TemporalTableSupport

suppressesTemporalTablePrimaryKeys

public boolean suppressesTemporalTablePrimaryKeys(boolean partitioned)

Description copied from interface: TemporalTableSupport

Report whether a partitioned temporal table must omit its primary key.

Specified by:

suppressesTemporalTablePrimaryKeys in interface TemporalTableSupport

supportsTemporalTablePartitioning

public boolean supportsTemporalTablePartitioning()

Description copied from interface: TemporalTableSupport

Report whether the strategy can partition current and historical rows.

Specified by:

supportsTemporalTablePartitioning in interface TemporalTableSupport

getTemporalTableAuxiliaryObjects

public List<TemporalTableAuxiliaryObject> getTemporalTableAuxiliaryObjects(TemporalTableDdlRequest request)

Description copied from interface: TemporalTableSupport

Describe, in deterministic order, the schema commands required in addition to the temporal table itself. Return an immutable list and do not mutate boot metadata.

Specified by:

getTemporalTableAuxiliaryObjects in interface TemporalTableSupport

getExtraTemporalTableDeclarations

@Nullable
public String getExtraTemporalTableDeclarations(TemporalTableDdlRequest request)

Description copied from interface: TemporalTableSupport

Render declarations placed inside the temporal table definition. Use every request name verbatim and return null when none are needed.

Specified by:

getExtraTemporalTableDeclarations in interface TemporalTableSupport

createTemporalTableCheckConstraint

public boolean createTemporalTableCheckConstraint(TemporalTableStrategy strategy)

Description copied from interface: TemporalTableSupport

Report whether Hibernate should add its effectivity check constraint for the selected storage strategy.

Specified by:

createTemporalTableCheckConstraint in interface TemporalTableSupport

getAsOfOperator

public String getAsOfOperator(TemporalTableStrategy strategy)

Description copied from interface: TemporalTableSupport

Return the SQL operator placed before a historical instant expression.

Specified by:

getAsOfOperator in interface TemporalTableSupport

useAsOfOperator

public boolean useAsOfOperator(TemporalTableStrategy strategy)

Description copied from interface: TemporalTableSupport

Report whether historical queries use TemporalTableSupport.getAsOfOperator(TemporalTableStrategy) for the selected strategy.

Specified by:

useAsOfOperator in interface TemporalTableSupport

useAsOfOperatorForCurrent

public boolean useAsOfOperatorForCurrent(TemporalTableStrategy strategy)

Description copied from interface: TemporalTableSupport

Report whether current-data queries use TemporalTableSupport.getAsOfOperator(TemporalTableStrategy) without an explicit historical instant.

Specified by:

useAsOfOperatorForCurrent in interface TemporalTableSupport

useTemporalRestriction

public boolean useTemporalRestriction(TemporalRestrictionRequest request)

Description copied from interface: TemporalTableSupport

Decide whether Hibernate should render effectivity-column restrictions from the supplied ephemeral query facts. Do not retain the request.

Specified by:

useTemporalRestriction in interface TemporalTableSupport

getTemporalExclusionColumnOption

@Nullable
public String getTemporalExclusionColumnOption()

Description copied from interface: TemporalTableSupport

Return the column option which excludes a column from native temporal versioning, or null when no option is needed.

Specified by:

getTemporalExclusionColumnOption in interface TemporalTableSupport

getDefaultTemporalTableStrategy

public TemporalTableStrategy getDefaultTemporalTableStrategy()

Description copied from interface: TemporalTableSupport

Return the concrete strategy selected when configuration requests TemporalTableStrategy.AUTO.

Specified by:

getDefaultTemporalTableStrategy in interface TemporalTableSupport