Interface Subscription

    • Method Detail

      • request

        void request​(long n)
        No events will be sent by a Publisher until demand is signaled via this method.

        It can be called however often and whenever needed—but if the outstanding cumulative demand ever becomes Long.MAX_VALUE or more, it may be treated by the Publisher as "effectively unbounded".

        Whatever has been requested can be sent by the Publisher so only signal demand for what can be safely handled.

        A Publisher can send less than is requested if the stream ends but then must emit either Subscriber.onError(Throwable) or Subscriber.onComplete().

        n - the strictly positive number of elements to requests to the upstream Publisher
      • cancel

        void cancel()
        Request the Publisher to stop sending data and clean up resources.

        Data may still be sent to meet previously signalled demand after calling cancel.