org.eclipse.ditto.services.connectivity.mapping

Interface MessageMapperExtension

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 MessageMapperExtension

Interface for wrapping an existing message mapper after creation.

Method Summary

Modifier and Type	Method and Description
MessageMapper	apply(org.eclipse.ditto.model.connectivity.ConnectionId connectionId, MessageMapper mapper, akka.actor.ExtendedActorSystem actorSystem) Instantiates a message mapper.

Method Detail

apply

@Nullable
MessageMapper apply(org.eclipse.ditto.model.connectivity.ConnectionId connectionId,
                              MessageMapper mapper,
                              akka.actor.ExtendedActorSystem actorSystem)

Instantiates a message mapper.

Parameters:

connectionId - ID of the connection.

mapper - the mapper that can be extended or wrapped.

actorSystem - actor system in which the message mapper is created.

Returns:

an instantiated message mapper according to the mapping context if instantiation is possible, or null otherwise.