Package 

Interface Producer

  • 
public interface Producer

    Interface that establishes a request-channel between an Observable and a Subscriber and allows the Subscriber to request a certain amount of items from the Observable (otherwise known as backpressure).

    The request amount only affects calls to onNext; onError and onCompleted may appear without requests.

    However, backpressure is somewhat optional in RxJava 1.x and Subscribers may not

    • Method Summary

      Modifier and Type Method Description
      abstract void request(long n) Request a certain maximum number of items from this Producer.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • request

         abstract void request(long n)

        Request a certain maximum number of items from this Producer. This is a way of requesting backpressure.To disable backpressure, pass {@code Long.MAX_VALUE} to this method.

        Requests are additive but if a sequence of requests totals more than {@code Long.MAX_VALUE} then {@code Long.MAX_VALUE} requests will be actioned and the extras may be ignored. Arriving at {@code Long.MAX_VALUE} by addition of requests cannot be assumed to disable backpressure. For example,the code below may result in {@code Long.MAX_VALUE} requests being actioned only.

        request(100);
request(Long.MAX_VALUE-1);
        Parameters:
        n - the maximum number of items you want this Producer to produce, or {@code Long.MAX_VALUE} if youwant the Producer to produce items at its own pace