Selects which handlers are included in listener introspection.
ANY is equivalent to OWN | DOWNSTREAM — handlers registered directly on this bus plus handlers on buses attached with pipe(bus).
ANY
OWN | DOWNSTREAM
pipe(bus)
DOWNSTREAM covers listeners on piped Bus instances only. It does not include tap handlers; those are registered as OWN wildcard handlers on this bus.
DOWNSTREAM
tap
OWN
Selects which handlers are included in listener introspection.
ANYis equivalent toOWN | DOWNSTREAM— handlers registered directly on this bus plus handlers on buses attached withpipe(bus).DOWNSTREAMcovers listeners on piped Bus instances only. It does not includetaphandlers; those are registered asOWNwildcard handlers on this bus.