Package rx.internal.producers

Class SingleDelayedProducer<T>

  • Type Parameters:
    T - the value type
    All Implemented Interfaces:
    java.io.Serializable, Producer
    public final class SingleDelayedProducer<T>
extends java.util.concurrent.atomic.AtomicInteger
implements Producer
    Producer that emits a single value and completes the child subscriber once that single value is set on it and the child requested items (maybe both asynchronously).
    See Also:
    Serialized Form

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private static <T> void emit​(Subscriber<? super T> c, T v)
      Emits the given value to the child subscriber and completes it and checks for unsubscriptions eagerly.
      void request​(long n)
      Request a certain maximum number of items from this Producer.
      void setValue​(T value)  

      • Methods inherited from class java.util.concurrent.atomic.AtomicInteger

        accumulateAndGet, addAndGet, compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, decrementAndGet, doubleValue, floatValue, get, getAcquire, getAndAccumulate, getAndAdd, getAndDecrement, getAndIncrement, getAndSet, getAndUpdate, getOpaque, getPlain, incrementAndGet, intValue, lazySet, longValue, set, setOpaque, setPlain, setRelease, toString, updateAndGet, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile

      • Methods inherited from class java.lang.Number

        byteValue, shortValue

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • SingleDelayedProducer

        public SingleDelayedProducer​(Subscriber<? super T> child)
        Constructor, wraps the target child subscriber.
        Parameters:
        child - the child subscriber, not null

    • Method Detail

      • request

        public void request​(long n)
        Description copied from interface: Producer
        Request a certain maximum number of items from this Producer. This is a way of requesting backpressure. To disable backpressure, pass Long.MAX_VALUE to this method.

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

         request(100);
 request(Long.MAX_VALUE-1);
        Specified by:
        request in interface Producer
        Parameters:
        n - the maximum number of items you want this Producer to produce, or Long.MAX_VALUE if you want the Producer to produce items at its own pace

      • setValue

        public void setValue​(T value)

      • emit

        private static <T> void emit​(Subscriber<? super T> c,
                             T v)
        Emits the given value to the child subscriber and completes it and checks for unsubscriptions eagerly.
        Parameters:
        c -
        v -