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

Interface BeforeSaveCallback<T>

All Superinterfaces:
EntityCallback<T>
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface BeforeSaveCallback<T> extends EntityCallback<T>
An EntityCallback that gets invoked before changes are applied to the database, after the aggregate was converted to a database change.
Since:
1.1
Author:
Jens Schauder, Mark Paluch

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    onBeforeSave(T aggregate, MutableAggregateChange<T> aggregateChange)
    Entity callback method invoked before an aggregate root is saved.

  • Method Details

    • onBeforeSave

      T onBeforeSave(T aggregate, MutableAggregateChange<T> aggregateChange)
      Entity callback method invoked before an aggregate root is saved. Can return either the same or a modified instance of the aggregate and can modify MutableAggregateChange contents. This method is called after converting the aggregate to MutableAggregateChange. Changes to the aggregate are not taken into account for saving. Use the BeforeConvertCallback to change the persistent the entity before being converted.
      Parameters:
      aggregate - the aggregate.
      aggregateChange - the associated MutableAggregateChange.
      Returns:
      the aggregate object to be persisted.