class ZStreamChunk[-R, +E, +A] extends AnyRef
A ZStreamChunk[R, E, A] represents an effectful stream that can produce values of
type A, or potentially fail with a value of type E.
ZStreamChunk differs from ZStream in that elements in the stream are processed
in batches, which is orders of magnitude more efficient than dealing with each
element individually.
ZStreamChunk is particularly suited for situations where you are dealing with values
of primitive types, e.g. those coming off a java.io.InputStream
- Self Type
- ZStreamChunk[R, E, A]
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- ZStreamChunk
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
++[R1 <: R, E1 >: E, A1 >: A](that: ZStreamChunk[R1, E1, A1]): ZStreamChunk[R1, E1, A1]
Concatenates with another stream in strict order
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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final
def
buffer(capacity: Int): ZStreamChunk[R, E, A]
Allows a faster producer to progress independently of a slower consumer by buffering up to
capacitychunks in a queue.Allows a faster producer to progress independently of a slower consumer by buffering up to
capacitychunks in a queue.- Note
Prefer capacities that are powers of 2 for better performance.
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final
def
bufferDropping(capacity: Int): ZStreamChunk[R, E, A]
Allows a faster producer to progress independently of a slower consumer by buffering elements into a dropping queue.
Allows a faster producer to progress independently of a slower consumer by buffering elements into a dropping queue.
- Note
Prefer capacities that are powers of 2 for better performance.
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final
def
bufferSliding(capacity: Int): ZStreamChunk[R, E, A]
Allows a faster producer to progress independently of a slower consumer by buffering elements into a sliding queue.
Allows a faster producer to progress independently of a slower consumer by buffering elements into a sliding queue.
- Note
Prefer capacities that are powers of 2 for better performance.
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final
def
bufferUnbounded: ZStreamChunk[R, E, A]
Allows a faster producer to progress independently of a slower consumer by buffering elements into an unbounded queue.
- val chunks: ZStream[R, E, Chunk[A]]
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def
clone(): AnyRef
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- protected[lang]
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final
def
collect[B](p: PartialFunction[A, B]): ZStreamChunk[R, E, B]
Collects a filtered, mapped subset of the stream.
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def
drop(n: Int): ZStreamChunk[R, E, A]
Drops the specified number of elements from this stream.
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def
dropWhile(pred: (A) ⇒ Boolean): ZStreamChunk[R, E, A]
Drops all elements of the stream for as long as the specified predicate evaluates to
true. -
final
def
eq(arg0: AnyRef): Boolean
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-
def
equals(arg0: Any): Boolean
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-
def
filter(pred: (A) ⇒ Boolean): ZStreamChunk[R, E, A]
Filters this stream by the specified predicate, retaining all elements for which the predicate evaluates to true.
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final
def
filterNot(pred: (A) ⇒ Boolean): ZStreamChunk[R, E, A]
Filters this stream by the specified predicate, removing all elements for which the predicate evaluates to true.
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def
finalize(): Unit
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- protected[lang]
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- @throws( classOf[java.lang.Throwable] )
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final
def
flatMap[R1 <: R, E1 >: E, B](f0: (A) ⇒ ZStreamChunk[R1, E1, B]): ZStreamChunk[R1, E1, B]
Returns a stream made of the concatenation in strict order of all the streams produced by passing each element of this stream to
f0 -
def
flattenChunks: ZStream[R, E, A]
Returns a stream made of the concatenation of all the chunks in this stream
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def
fold[A1 >: A, S](s: S)(f: (S, A1) ⇒ S): ZIO[R, E, S]
Executes a pure fold over the stream of values - reduces all elements in the stream to a value of type
S.Executes a pure fold over the stream of values - reduces all elements in the stream to a value of type
S. See ZStream.fold -
final
def
foldM[R1 <: R, E1 >: E, A1 >: A, S](s: S)(f: (S, A1) ⇒ ZIO[R1, E1, S]): ZIO[R1, E1, S]
Executes an effectful fold over the stream of values.
Executes an effectful fold over the stream of values. See ZStream.foldM
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final
def
foldManaged[A1 >: A, S](s: S)(f: (S, A1) ⇒ S): ZManaged[R, E, S]
Executes a pure fold over the stream of values.
Executes a pure fold over the stream of values. Returns a Managed value that represents the scope of the stream. See ZStream.foldManaged
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final
def
foldManagedM[R1 <: R, E1 >: E, A1 >: A, S](s: S)(f: (S, A1) ⇒ ZIO[R1, E1, S]): ZManaged[R1, E1, S]
Executes an effectful fold over the stream of values.
Executes an effectful fold over the stream of values. Returns a Managed value that represents the scope of the stream. See ZStream.foldManagedM
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final
def
foldWhile[A1 >: A, S](s: S)(cont: (S) ⇒ Boolean)(f: (S, A1) ⇒ S): ZIO[R, E, S]
Reduces the elements in the stream to a value of type
S.Reduces the elements in the stream to a value of type
S. Stops the fold early when the condition is not fulfilled. See ZStream.foldWhile -
final
def
foldWhileM[R1 <: R, E1 >: E, A1 >: A, S](s: S)(cont: (S) ⇒ Boolean)(f: (S, A1) ⇒ ZIO[R1, E1, S]): ZIO[R1, E1, S]
Executes an effectful fold over the stream of values.
Executes an effectful fold over the stream of values. Stops the fold early when the condition is not fulfilled. See ZStream.foldWhileM
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def
foldWhileManaged[A1 >: A, S](s: S)(cont: (S) ⇒ Boolean)(f: (S, A1) ⇒ S): ZManaged[R, E, S]
Executes a pure fold over the stream of values.
Executes a pure fold over the stream of values. Stops the fold early when the condition is not fulfilled. See ZStream.foldWhileManaged
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final
def
foldWhileManagedM[R1 <: R, E1 >: E, A1 >: A, S](s: S)(cont: (S) ⇒ Boolean)(f: (S, A1) ⇒ ZIO[R1, E1, S]): ZManaged[R1, E1, S]
Executes an effectful fold over the stream of values.
Executes an effectful fold over the stream of values. Stops the fold early when the condition is not fulfilled. See ZStream.foldWhileManagedM
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final
def
foreach[R1 <: R, E1 >: E](f: (A) ⇒ ZIO[R1, E1, Unit]): ZIO[R1, E1, Unit]
Consumes all elements of the stream, passing them to the specified callback.
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final
def
foreachWhile[R1 <: R, E1 >: E](f: (A) ⇒ ZIO[R1, E1, Boolean]): ZIO[R1, E1, Unit]
Consumes elements of the stream, passing them to the specified callback, and terminating consumption when the callback returns
false. -
final
def
getClass(): Class[_]
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- @native()
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def
hashCode(): Int
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final
def
isInstanceOf[T0]: Boolean
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def
map[B](f: (A) ⇒ B): ZStreamChunk[R, E, B]
Returns a stream made of the elements of this stream transformed with
f0 -
final
def
mapAccum[S1, B](s1: S1)(f1: (S1, A) ⇒ (S1, B)): ZStreamChunk[R, E, B]
Statefully maps over the elements of this stream to produce new elements.
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def
mapConcat[B](f: (A) ⇒ Iterable[B]): ZStreamChunk[R, E, B]
Maps each element to an iterable and flattens the iterable into the output of this stream.
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def
mapConcatChunk[B](f: (A) ⇒ Chunk[B]): ZStreamChunk[R, E, B]
Maps each element to a chunk and flattens the chunks into the output of this stream.
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final
def
mapM[R1 <: R, E1 >: E, B](f0: (A) ⇒ ZIO[R1, E1, B]): ZStreamChunk[R1, E1, B]
Maps over elements of the stream with the specified effectful function.
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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- @native()
- final def process: ZManaged[R, E, Pull[R, E, A]]
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final
def
run[R1 <: R, E1 >: E, A0, A1 >: A, B](sink: ZSink[R1, E1, A0, Chunk[A1], B]): ZIO[R1, E1, B]
Runs the sink on the stream to produce either the sink's result or an error.
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final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
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-
def
take(n: Int): ZStreamChunk[R, E, A]
Takes the specified number of elements from this stream.
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def
takeWhile(pred: (A) ⇒ Boolean): ZStreamChunk[R, E, A]
Takes all elements of the stream for as long as the specified predicate evaluates to
true. -
final
def
tap[R1 <: R, E1 >: E](f0: (A) ⇒ ZIO[R1, E1, _]): ZStreamChunk[R1, E1, A]
Adds an effect to consumption of every element of the stream.
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def
toInputStream(implicit ev0: <:<[E, Throwable], ev1: <:<[A, Byte]): ZManaged[R, E, InputStream]
- Annotations
- @silent( "never used" )
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final
def
toQueue[E1 >: E, A1 >: A](capacity: Int = 2): ZManaged[R, Nothing, Queue[Take[E1, Chunk[A1]]]]
Converts the stream to a managed queue.
Converts the stream to a managed queue. After managed the queue is used, the queue will never again produce chunks and should be discarded.
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final
def
toQueueUnbounded[E1 >: E, A1 >: A]: ZManaged[R, Nothing, Queue[Take[E1, Chunk[A1]]]]
Converts the stream into an unbounded managed queue.
Converts the stream into an unbounded managed queue. After the managed queue is used, the queue will never again produce values and should be discarded.
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final
def
toQueueWith[R1 <: R, E1 >: E, A1 >: A, Z](f: (Queue[Take[E1, Chunk[A1]]]) ⇒ ZIO[R1, E1, Z], capacity: Int = 1): ZIO[R1, E1, Z]
Converts the stream to a managed queue and immediately consume its elements.
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def
toString(): String
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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final
def
zipWithIndex: ZStreamChunk[R, E, (A, Int)]
Zips this stream together with the index of elements of the stream across chunks.