Package org.springframework.transaction.reactive

Interface TransactionCallback<T>

Type Parameters:

T - the result type

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 TransactionCallback<T>

Callback interface for reactive transactional code. Used with TransactionalOperator's execute method, often as anonymous class within a method implementation.

Typically used to assemble various calls to transaction-unaware data access services into a higher-level service method with transaction demarcation. As an alternative, consider the use of declarative transaction demarcation (e.g. through Spring's Transactional annotation).

Since:

5.2

Author:

Mark Paluch, Juergen Hoeller

See Also:

• TransactionalOperator

Method Summary

Modifier and Type	Method	Description
Publisher<T>	doInTransaction(ReactiveTransaction status)	Gets called by TransactionalOperator within a transactional context.

Method Details

doInTransaction

Publisher<T> doInTransaction(ReactiveTransaction status)

Gets called by TransactionalOperator within a transactional context. Does not need to care about transactions itself, although it can retrieve and influence the status of the current transaction via the given status object, e.g. setting rollback-only.

Parameters:

status - associated transaction status

Returns:

a result publisher

See Also:

• TransactionalOperator.transactional(reactor.core.publisher.Flux<T>)