Lifecycle signal that is fired after this actor and all its child actors
(transitively) have terminated. The Terminated signal is only sent to
registered watchers after this signal has been processed.
IMPORTANT NOTE: if the actor terminated by switching to the
Stopped behavior then this signal will be ignored (i.e. the
Stopped behavior will do nothing in reaction to it).
Lifecycle signal that is fired after this actor and all its child actors (transitively) have terminated. The Terminated signal is only sent to registered watchers after this signal has been processed.
IMPORTANT NOTE: if the actor terminated by switching to the
Stopped
behavior then this signal will be ignored (i.e. the Stopped behavior will do nothing in reaction to it).