Package org.hibernate.metamodel.mapping.internal

Class NoValueGeneration

java.lang.Object

org.hibernate.metamodel.mapping.internal.NoValueGeneration

All Implemented Interfaces:

Serializable, ValueGeneration

public class NoValueGeneration
extends Object
implements ValueGeneration

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static NoValueGeneration	INSTANCE	Singleton access

Constructor Summary

Constructors

Constructor	Description
NoValueGeneration()

Method Summary

Modifier and Type	Method	Description
String	getDatabaseGeneratedReferencedColumnValue()	For values which are generated in the database (ValueGeneration.getValueGenerator() == null), if the column will be referenced in the SQL (ValueGeneration.referenceColumnInSql() == true), what value should be used in the SQL as the column value.
GenerationTiming	getGenerationTiming()	When is this value generated : NEVER, INSERT, ALWAYS (INSERT+UPDATE)
ValueGenerator<?>	getValueGenerator()	Obtain the in-VM value generator.
boolean	referenceColumnInSql()	For values which are generated in the database (ValueGeneration.getValueGenerator() == null), should the column be referenced in the INSERT / UPDATE SQL?

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final NoValueGeneration INSTANCE

Singleton access

Constructor Detail

NoValueGeneration

public NoValueGeneration()

Method Detail

getGenerationTiming

public GenerationTiming getGenerationTiming()

Description copied from interface: ValueGeneration

When is this value generated : NEVER, INSERT, ALWAYS (INSERT+UPDATE)

Specified by:

getGenerationTiming in interface ValueGeneration

Returns:

When the value is generated.

getValueGenerator

public ValueGenerator<?> getValueGenerator()

Description copied from interface: ValueGeneration

Obtain the in-VM value generator.

May return null. In fact for values that are generated "in the database" via execution of the INSERT/UPDATE statement, the expectation is that null be returned here

Specified by:

getValueGenerator in interface ValueGeneration

Returns:

The strategy for performing in-VM value generation

referenceColumnInSql

public boolean referenceColumnInSql()

Description copied from interface: ValueGeneration

For values which are generated in the database (ValueGeneration.getValueGenerator() == null), should the column be referenced in the INSERT / UPDATE SQL?

This will be false most often to have a DDL-defined DEFAULT value be applied on INSERT

Specified by:

referenceColumnInSql in interface ValueGeneration

Returns:

true indicates the column should be included in the SQL.

getDatabaseGeneratedReferencedColumnValue

public String getDatabaseGeneratedReferencedColumnValue()

Description copied from interface: ValueGeneration

For values which are generated in the database (ValueGeneration.getValueGenerator() == null), if the column will be referenced in the SQL (ValueGeneration.referenceColumnInSql() == true), what value should be used in the SQL as the column value.

Generally this will be a function call or a marker (DEFAULTS).

NOTE : for in-VM generation, this will not be called and the column value will implicitly be a JDBC parameter ('?')

Specified by:

getDatabaseGeneratedReferencedColumnValue in interface ValueGeneration

Returns:

The column value to be used in the SQL.