UserVersionType (Hibernate Javadocs (hibernate-core))

All Superinterfaces:

Comparator<T>, UserType<T>
```
public interface UserVersionType<T>
extends UserType<T>, Comparator<T>
```
A user type that may be used for a version property

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`T`	`next(T current, SharedSessionContractImplementor session)`	Increment the version.
`T`	`seed(SharedSessionContractImplementor session)`	Generate an initial version.

Methods inherited from interface java.util.Comparator
compare, equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Methods inherited from interface org.hibernate.usertype.UserType
assemble, deepCopy, disassemble, equals, getDefaultSqlLength, getDefaultSqlPrecision, getDefaultSqlScale, getJdbcType, getSqlType, getValueConverter, hashCode, isMutable, nullSafeGet, nullSafeSet, replace, returnedClass

- Method Detail
  - seed
```
T seed(SharedSessionContractImplementor 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
```
T next(T current,
       SharedSessionContractImplementor session)
```
    Increment the version.
    
    Parameters:
    
    session - The session from which this request originates.
    
    current - the current version
    
    Returns:
    
    an instance of the type