org.springframework.data.relational.core.mapping.event

Class BeforeSaveEvent

java.lang.Object

java.util.EventObject

org.springframework.context.ApplicationEvent

org.springframework.data.relational.core.mapping.event.RelationalEventWithEntity

org.springframework.data.relational.core.mapping.event.BeforeSaveEvent

All Implemented Interfaces:

Serializable, RelationalEvent, WithEntity

public class BeforeSaveEvent
extends RelationalEventWithEntity

Gets published before an entity gets saved to the database. The contained AggregateChange is mutable and may be changed in order to change the actions that get performed on the database as part of the save operation.

Author:

Jens Schauder

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
BeforeSaveEvent(Identifier id, Object instance, AggregateChange change)

Method Summary

Modifier and Type	Method and Description
AggregateChange	getChange()
Identifier	getId() The identifier of the aggregate root, triggering this event.
Optional<Object>	getOptionalEntity() Returns the aggregate root the event was triggered for.

Methods inherited from class org.springframework.context.ApplicationEvent

getTimestamp

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.data.relational.core.mapping.event.WithEntity

getEntity

Methods inherited from interface org.springframework.data.relational.core.mapping.event.RelationalEvent

getId, getOptionalEntity

Constructor Detail

BeforeSaveEvent

public BeforeSaveEvent(Identifier id,
                       Object instance,
                       AggregateChange change)

Parameters:

id - of the entity to be saved.

instance - the entity about to get saved.

change - the AggregateChange that is going to get applied to the database.

Method Detail

getId

public Identifier getId()

Description copied from interface: RelationalEvent

The identifier of the aggregate root, triggering this event.

Specified by:

getId in interface RelationalEvent

Returns:

the source of the event as an Identifier. Guaranteed to be not null.

getOptionalEntity

public Optional<Object> getOptionalEntity()

Description copied from interface: RelationalEvent

Returns the aggregate root the event was triggered for.

Specified by:

getOptionalEntity in interface RelationalEvent

Returns:

will never be null.

getChange

public AggregateChange getChange()