org.springframework.data.relational.core.conversion

Class RelationalEntityVersionUtils

java.lang.Object

org.springframework.data.relational.core.conversion.RelationalEntityVersionUtils

public class RelationalEntityVersionUtils
extends Object

Utilities commonly used to set/get properties for instances of RelationalPersistentEntities.

Since:

2.0

Author:

Tyler Van Gorder

Method Summary

Modifier and Type	Method and Description
static <S> Number	getVersionNumberFromEntity(S instance, RelationalPersistentEntity<S> persistentEntity, RelationalConverter converter) Get the current value of the version property for an instance of a relational persistent entity.
static <S> S	setVersionNumberOnEntity(S instance, Number version, RelationalPersistentEntity<S> persistentEntity, RelationalConverter converter) Set the version property on an instance of a relational persistent entity.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getVersionNumberFromEntity

@Nullable
public static <S> Number getVersionNumberFromEntity(S instance,
                                                              RelationalPersistentEntity<S> persistentEntity,
                                                              RelationalConverter converter)

Get the current value of the version property for an instance of a relational persistent entity.

Parameters:

instance - must not be null.

persistentEntity - must not be null.

converter - must not be null.

Returns:

Current value of the version property

Throws:

IllegalArgumentException - if the entity does not have a version property.

setVersionNumberOnEntity

public static <S> S setVersionNumberOnEntity(S instance,
                                             @Nullable
                                             Number version,
                                             RelationalPersistentEntity<S> persistentEntity,
                                             RelationalConverter converter)

Set the version property on an instance of a relational persistent entity. This method returns an instance of the same type with the updated version property and will correctly handle the case where the version is immutable.

Parameters:

instance - must not be null.

version - The value to be set on the version property.

persistentEntity - must not be null.

converter - must not be null.

Returns:

An instance of the entity with an updated version property.

Throws:

IllegalArgumentException - if the entity does not have a version property.