net.sf.hibernate.id
Interfaces 
Configurable
IdentifierGenerator
PersistentIdentifierGenerator
Classes 
Assigned
CounterGenerator
ForeignGenerator
IdentifierGeneratorFactory
IdentityGenerator
IncrementGenerator
SequenceGenerator
SequenceHiLoGenerator
TableGenerator
TableHiLoGenerator
UUIDGenerator
UUIDHexGenerator
UUIDStringGenerator
Exceptions 
IdentifierGenerationException