程序包 org.hibernate.usertype

接口 UserVersionType

所有超级接口:

Comparator, UserType

public interface UserVersionType
extends UserType, Comparator

A user type that may be used for a version property

作者:

Gavin King

方法概要

修饰符和类型	方法	说明
Object	next(Object current, SharedSessionContractImplementor session)	Increment the version.
Object	seed(SharedSessionContractImplementor session)	Generate an initial version.

从接口继承的方法 java.util.Comparator

compare, equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

从接口继承的方法 org.hibernate.usertype.UserType

assemble, deepCopy, disassemble, equals, hashCode, isMutable, nullSafeGet, nullSafeSet, replace, returnedClass, sqlTypes

方法详细资料

seed

Object seed(SharedSessionContractImplementor session)

Generate an initial version.

参数:

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.

返回:

an instance of the type

next

Object next(Object current,
            SharedSessionContractImplementor session)

Increment the version.

参数:

session - The session from which this request originates.

current - the current version

返回:

an instance of the type