Processor that emits the very last value followed by a completion event or the received error to
Processor that emits the most recent item it has observed and all subsequent observed items to each subscribed
Represents a Subscriber and a Flowable (Publisher) at the same time, allowing multicasting events from a single source to multiple child Subscribers.
Processor that multicasts all subsequently observed items to its current
Replays events to Subscribers.
Processor that allows only a single Subscriber to subscribe to it during its lifetime.