org.hibernate.id

Interface IdentifierGenerator

All Known Subinterfaces:

PersistentIdentifierGenerator, PostInsertIdentifierGenerator

All Known Implementing Classes:

AbstractPostInsertGenerator, AbstractUUIDGenerator, Assigned, CompositeNestedGeneratedValueGenerator, ForeignGenerator, GUIDGenerator, IdentityGenerator, IncrementGenerator, MultipleHiLoPerTableGenerator, SelectGenerator, SequenceGenerator, SequenceHiLoGenerator, SequenceIdentityGenerator, SequenceStyleGenerator, TableGenerator, TableGenerator, TableHiLoGenerator, UUIDGenerator, UUIDHexGenerator

public interface IdentifierGenerator

The general contract between a class that generates unique identifiers and the Session. It is not intended that this interface ever be exposed to the application. It is intended that users implement this interface to provide custom identifier generation strategies.

Implementors should provide a public default constructor.

Implementations that accept configuration parameters should also implement Configurable.
Implementors must be threadsafe

Author:

Gavin King

See Also:

PersistentIdentifierGenerator, Configurable

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ENTITY_NAME The configuration parameter holding the entity name

Method Summary

Methods

Modifier and Type	Method and Description
java.io.Serializable	generate(SessionImplementor session, java.lang.Object object) Generate a new identifier.

Field Detail

ENTITY_NAME

static final java.lang.String ENTITY_NAME

The configuration parameter holding the entity name

See Also:

Constant Field Values

Method Detail

generate

java.io.Serializable generate(SessionImplementor session,
                            java.lang.Object object)
                              throws HibernateException

Generate a new identifier.

Parameters:

session -

object - the entity or toplevel collection for which the id is being generated

Returns:

a new identifier

Throws:

HibernateException