akka.persistence.multidc.scaladsl

Interface Effect<Event,State>

All Known Implementing Classes:

EffectImpl, Passivate, PersistAll, PersistNothing, PersistNothing$, PersistOne, StopEffect, StopEffect$, UnhandledCommand, UnhandledCommand$

public interface Effect<Event,State>

A command handler returns a Effect directive that defines what event or events, if any, to persist. Use the thenPersist, thenPersistAll or done methods of the context that is passed to the command handler function to create the Effect directive.

Additional side effects can be performed in the callback andThen

Instances of Effect are available through factories in the respective Java and Scala DSL packages.

Not intended for user extension.

Method Summary

Modifier and Type	Method and Description
Effect<Event,State>	andThen(scala.Function1<State,scala.runtime.BoxedUnit> afterCallback) Execute the given side effect callback after events, if any, are persisted.

Method Detail

andThen

Effect<Event,State> andThen(scala.Function1<State,scala.runtime.BoxedUnit> afterCallback)

Execute the given side effect callback after events, if any, are persisted. Side effect callback are always called, also when no events are emitted.

Parameters:

afterCallback - (undocumented)

Returns:

(undocumented)