org.springframework.data.relational.core.conversion

Class RelationalEntityDeleteWriter

java.lang.Object

org.springframework.data.relational.core.conversion.RelationalEntityDeleteWriter

All Implemented Interfaces:

EntityWriter<Object,MutableAggregateChange<?>>

public class RelationalEntityDeleteWriter
extends Object
implements EntityWriter<Object,MutableAggregateChange<?>>

Converts an entity that is about to be deleted into DbActions inside a MutableAggregateChange that need to be executed against the database to recreate the appropriate state in the database. If the MutableAggregateChange has a reference to the entity and the entity has a version attribute, the delete will include an optimistic record locking check.

Author:

Jens Schauder, Mark Paluch, Bastian Wilhelm, Tyler Van Gorder, Myeonghyeon Lee

Constructor Summary

Constructors

Constructor and Description
RelationalEntityDeleteWriter(RelationalMappingContext context)

Method Summary

Modifier and Type	Method and Description
void	write(Object id, MutableAggregateChange<?> aggregateChange) Fills the provided MutableAggregateChange with the necessary DbActions to delete the aggregate root identified by id.

Methods inherited from class java.lang.Object

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

Constructor Detail

RelationalEntityDeleteWriter

public RelationalEntityDeleteWriter(RelationalMappingContext context)

Method Detail

write

public void write(@Nullable
                  Object id,
                  MutableAggregateChange<?> aggregateChange)

Fills the provided MutableAggregateChange with the necessary DbActions to delete the aggregate root identified by id. If id is null it is interpreted as "Delete all aggregates of the type indicated by the aggregateChange".

Specified by:

write in interface EntityWriter<Object,MutableAggregateChange<?>>

Parameters:

id - may be null.

aggregateChange - must not be null.