org.hibernate.usertype
Interface UserVersionType

All Superinterfaces:
Comparator, UserType

public interface UserVersionType
extends UserType, Comparator

A user type that may be used for a version property

Author:
Gavin King

Method Summary
 Object next(Object current, SessionImplementor session)
          Increment the version.
 Object seed(SessionImplementor session)
          Generate an initial version.
 
Methods inherited from interface org.hibernate.usertype.UserType
assemble, deepCopy, disassemble, equals, hashCode, isMutable, nullSafeGet, nullSafeSet, replace, returnedClass, sqlTypes
 
Methods inherited from interface java.util.Comparator
compare, equals
 

Method Detail

seed

Object seed(SessionImplementor session)
Generate an initial version.

Parameters:
session - The session from which this request originates. May be null; currently this only happens during startup when trying to determine the "unsaved value" of entities.
Returns:
an instance of the type

next

Object next(Object current,
            SessionImplementor session)
Increment the version.

Parameters:
session - The session from which this request originates.
current - the current version
Returns:
an instance of the type


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