IdentifierGenerator

org.hibernate.id.IdentifierGenerator

Known Indirect Subclasses

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

AbstractPostInsertGenerator	Basic implementation of the `PostInsertIdentifierGenerator` contract.
AbstractUUIDGenerator	The base class for identifier generators that use a UUID algorithm.
Assigned	assigned An `IdentifierGenerator` that returns the current identifier assigned to an instance.
CompositeNestedGeneratedValueGenerator	For composite identifiers, defines a number of "nested" generations that need to happen to "fill" the identifier property(s).
ForeignGenerator	foreign An `Identifier` generator that uses the value of the id property of an associated object One mapping parameter is required: property.
GUIDGenerator	Generates `string` values using the SQL Server NEWID() function.
IdentityGenerator	A generator for use with ANSI-SQL IDENTITY columns used as the primary key.
IncrementGenerator	increment An `IdentifierGenerator` that returns a `long`, constructed by counting from the maximum primary key value at startup.
MultipleHiLoPerTableGenerator	A hilo `IdentifierGenerator` that returns a `Long`, constructed using a hi/lo algorithm.
PersistentIdentifierGenerator	An `IdentifierGenerator` that requires creation of database objects.
PostInsertIdentifierGenerator
SelectGenerator	A generator that selects the just inserted row to determine the identifier value assigned by the database.
SequenceGenerator	sequence Generates `long` values using an oracle-style sequence.
SequenceHiLoGenerator	seqhilo An `IdentifierGenerator` that combines a hi/lo algorithm with an underlying oracle-style sequence that generates hi values.
SequenceIdentityGenerator	A generator which combines sequence generation with immediate retrieval through JDBC3 `getGeneratedKeys`.
SequenceStyleGenerator	Generates identifier values based on an sequence-style database structure.
TableGenerator	An enhanced version of table-based id generation.
TableHiLoGenerator	hilo An `IdentifierGenerator` that returns a `Long`, constructed using a hi/lo algorithm.
UUIDGenerator	An `IdentifierGenerator` which generates UUID values using a pluggable `generation strategy`.
UUIDHexGenerator	uuid A `UUIDGenerator` that returns a string of length 32, This string will consist of only hex digits.

Class Overview

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

Summary

Constants
String	ENTITY_NAME	The configuration parameter holding the entity name

Public Methods
abstract Serializable	generate(SessionImplementor session, Object object) Generate a new identifier.

Constants

public static final String ENTITY_NAME

The configuration parameter holding the entity name

Constant Value: "entity_name"

Public Methods

public abstract Serializable generate (SessionImplementor session, Object object)

Generate a new identifier.

Parameters

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

Returns

a new identifier

Throws

HibernateException

Interfaces

Classes

Exceptions