class ForwardingDataTreeChangeListener implements DOMDataTreeChangeListener {

    @Override
    public void onDataTreeChanged(final Collection<DataTreeCandidate> changes) {
        LOG.debug("Sending DataTreeChanged to {}", actor);
        actor.tell(new DataTreeChanged(changes), sendingActor);
    }

      ForwardingDataTreeChangeListener(final ActorSelection actor, @Nullable final ActorRef sendingActor);

}