NestedStreamOps
final class NestedStreamOps[F <: ([_$148] =>> Any), O](outer: Stream[F, Stream[F, O]]) extends AnyVal
Provides syntax for streams of streams.
class AnyVal
trait Matchable
class Any
Value members
Methods
Nondeterministically merges a stream of streams (
opening at most
outer) in to a single stream,opening at most
maxOpen streams at any point in time.The outer stream is evaluated and each resulting inner stream is run concurrently,
up to
is paused until one or more inner streams finish evaluating.
up to
maxOpen stream. Once this limit is reached, evaluation of the outer streamis paused until one or more inner streams finish evaluating.
When the outer stream stops gracefully, all inner streams continue to run,
resulting in a stream that will stop when all inner streams finish
their evaluation.
resulting in a stream that will stop when all inner streams finish
their evaluation.
When the outer stream fails, evaluation of all inner streams is interrupted
and the resulting stream will fail with same failure.
and the resulting stream will fail with same failure.
When any of the inner streams fail, then the outer stream and all other inner
streams are interrupted, resulting in stream that fails with the error of the
stream that caused initial failure.
streams are interrupted, resulting in stream that fails with the error of the
stream that caused initial failure.
Finalizers on each inner stream are run at the end of the inner stream,
concurrently with other stream computations.
concurrently with other stream computations.
Finalizers on the outer stream are run after all inner streams have been pulled
from the outer stream but not before all inner streams terminate -- hence finalizers on the outer stream will run
AFTER the LAST finalizer on the very last inner stream.
from the outer stream but not before all inner streams terminate -- hence finalizers on the outer stream will run
AFTER the LAST finalizer on the very last inner stream.
Finalizers on the returned stream are run after the outer stream has finished
and all open inner streams have finished.
and all open inner streams have finished.
- Value Params
- maxOpen
-
Maximum number of open inner streams at any time. Must be > 0.