org.hibernate.id
Class UUIDGenerator

java.lang.Object
  extended by org.hibernate.id.UUIDGenerator
All Implemented Interfaces:
Configurable, IdentifierGenerator

public class UUIDGenerator
extends Object
implements IdentifierGenerator, Configurable

An IdentifierGenerator which generates UUID values using a pluggable generation strategy. The values this generator can return include UUID, String and byte[16]

Supports 2 config parameters:

Currently there are 2 standard implementations of UUIDGenerationStrategy:


Field Summary
static String UUID_GEN_STRATEGY
           
static String UUID_GEN_STRATEGY_CLASS
           
 
Fields inherited from interface org.hibernate.id.IdentifierGenerator
ENTITY_NAME, JPA_ENTITY_NAME
 
Constructor Summary
UUIDGenerator()
           
 
Method Summary
static UUIDGenerator buildSessionFactoryUniqueIdentifierGenerator()
           
 void configure(Type type, Properties params, Dialect d)
          Configure this instance, given the value of parameters specified by the user as <param> elements.
 Serializable generate(SessionImplementor session, Object object)
          Generate a new identifier.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

UUID_GEN_STRATEGY

public static final String UUID_GEN_STRATEGY
See Also:
Constant Field Values

UUID_GEN_STRATEGY_CLASS

public static final String UUID_GEN_STRATEGY_CLASS
See Also:
Constant Field Values
Constructor Detail

UUIDGenerator

public UUIDGenerator()
Method Detail

buildSessionFactoryUniqueIdentifierGenerator

public static UUIDGenerator buildSessionFactoryUniqueIdentifierGenerator()

configure

public void configure(Type type,
                      Properties params,
                      Dialect d)
               throws MappingException
Description copied from interface: Configurable
Configure this instance, given the value of parameters specified by the user as <param> elements. This method is called just once, following instantiation.

Specified by:
configure in interface Configurable
params - param values, keyed by parameter name
Throws:
MappingException

generate

public Serializable generate(SessionImplementor session,
                             Object object)
                      throws HibernateException
Description copied from interface: IdentifierGenerator
Generate a new identifier.

Specified by:
generate in interface IdentifierGenerator
object - the entity or toplevel collection for which the id is being generated
Returns:
a new identifier
Throws:
HibernateException


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