abstract class MaxInFlightRequestStrategy extends RequestStrategy
Requests up to the max
and also takes the number of messages
that have been queued internally or delegated to other actors into account.
Concrete subclass must implement #inFlightInternally.
It will request elements in minimum batches of the defined #batchSize.
- Source
- ActorSubscriber.scala
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def
batchSize: Int
Elements will be requested in minimum batches of this size.
Elements will be requested in minimum batches of this size. Default is 5. Subclass may override to define the batch size.
-
def
requestDemand(remainingRequested: Int): Int
Invoked by the ActorSubscriber after each incoming message to determine how many more elements to request from the stream.
Invoked by the ActorSubscriber after each incoming message to determine how many more elements to request from the stream.
- remainingRequested
current remaining number of elements that have been requested from upstream but not received yet
- returns
demand of more elements from the stream, returning 0 means that no more elements will be requested for now
- Definition Classes
- MaxInFlightRequestStrategy → RequestStrategy