Package org.hibernate.id.uuid

Class UuidGenerator

java.lang.Object

org.hibernate.id.uuid.UuidGenerator

All Implemented Interfaces:

Serializable, BeforeExecutionGenerator, Generator

public class UuidGenerator
extends Object
implements BeforeExecutionGenerator

Generator for producing UUID values.

Uses a UuidValueGenerator and UUIDJavaType.ValueTransformer to generate the values.

See Also:

UuidGenerator, Serialized Form

Constructor Summary

Constructors

Constructor	Description
UuidGenerator(Class<?> memberType)	This form is used when there is no @UuidGenerator but we know we want this generator
UuidGenerator(UuidGenerator config, Member member, GeneratorCreationContext creationContext)
UuidGenerator(UuidGenerator config, Member idMember, CustomIdGeneratorCreationContext creationContext)

Method Summary

Modifier and Type	Method	Description
Object	generate(SharedSessionContractImplementor session, Object owner, Object currentValue, EventType eventType)	Generate a value.
EnumSet<EventType>	getEventTypes()	The event types for which this generator should be called to produce a new value.
UuidValueGenerator	getValueGenerator()
UUIDJavaType.ValueTransformer	getValueTransformer()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.generator.BeforeExecutionGenerator

generatedOnExecution

Methods inherited from interface org.hibernate.generator.Generator

allowAssignedIdentifiers, generatedOnExecution, generatesOnInsert, generatesOnUpdate, generatesSometimes

Constructor Detail

UuidGenerator

@Internal
public UuidGenerator(Class<?> memberType)

This form is used when there is no @UuidGenerator but we know we want this generator

UuidGenerator

public UuidGenerator(UuidGenerator config,
                     Member idMember,
                     CustomIdGeneratorCreationContext creationContext)

UuidGenerator

public UuidGenerator(UuidGenerator config,
                     Member member,
                     GeneratorCreationContext creationContext)

Method Detail

getEventTypes

public EnumSet<EventType> getEventTypes()

Description copied from interface: Generator

The event types for which this generator should be called to produce a new value.

Identifier generators must return EventTypeSets.INSERT_ONLY.

Specified by:

getEventTypes in interface Generator

Returns:

EventTypeSets.INSERT_ONLY

generate

public Object generate(SharedSessionContractImplementor session,
                       Object owner,
                       Object currentValue,
                       EventType eventType)

Description copied from interface: BeforeExecutionGenerator

Generate a value.

Specified by:

generate in interface BeforeExecutionGenerator

Parameters:

session - The session from which the request originates.

owner - The instance of the object owning the attribute for which we are generating a value.

currentValue - The current value assigned to the property, or null

eventType - The type of event that has triggered generation of a new value

Returns:

The generated value

getValueGenerator

@Internal
public UuidValueGenerator getValueGenerator()

getValueTransformer

@Internal
public UUIDJavaType.ValueTransformer getValueTransformer()