Packages

t

akka.stream.scaladsl

FlowWithContextOps

trait FlowWithContextOps[+Out, +Ctx, +Mat] extends AnyRef

Shared stream operations for FlowWithContext and SourceWithContext that automatically propagate a context element with each data element.

API MAY CHANGE

Annotations
@ApiMayChange()
Source
FlowWithContextOps.scala
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Inherited
  1. FlowWithContextOps
  2. AnyRef
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Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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  1. Public
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Type Members

  1. type Repr[+O, +C] = ReprMat[O, C, Mat]
  2. abstract type ReprMat[+O, +C, +M] <: FlowWithContextOps[O, C, M] { type ReprMat[+OO, +CC, +MatMat] = FlowWithContextOps.this.ReprMat[OO,CC,MatMat] }

Abstract Value Members

  1. abstract def via[Out2, Ctx2, Mat2](flow: Graph[FlowShape[(Out, Ctx), (Out2, Ctx2)], Mat2]): Repr[Out2, Ctx2]

    Transform this flow by the regular flow.

    Transform this flow by the regular flow. The given flow must support manual context propagation by taking and producing tuples of (data, context).

    This can be used as an escape hatch for operations that are not (yet) provided with automatic context propagation here.

    See also

    akka.stream.scaladsl.FlowOps.via

  2. abstract def viaMat[Out2, Ctx2, Mat2, Mat3](flow: Graph[FlowShape[(Out, Ctx), (Out2, Ctx2)], Mat2])(combine: (Mat, Mat2) ⇒ Mat3): ReprMat[Out2, Ctx2, Mat3]

    Transform this flow by the regular flow.

    Transform this flow by the regular flow. The given flow must support manual context propagation by taking and producing tuples of (data, context).

    This can be used as an escape hatch for operations that are not (yet) provided with automatic context propagation here.

    The combine function is used to compose the materialized values of this flow and that flow into the materialized value of the resulting Flow.

    See also

    akka.stream.scaladsl.FlowOps.viaMat

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from FlowWithContextOps[Out, Ctx, Mat] to any2stringadd[FlowWithContextOps[Out, Ctx, Mat]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (FlowWithContextOps[Out, Ctx, Mat], B)
    Implicit
    This member is added by an implicit conversion from FlowWithContextOps[Out, Ctx, Mat] to ArrowAssoc[FlowWithContextOps[Out, Ctx, Mat]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate() @throws( ... )
  8. def collect[Out2](f: PartialFunction[Out, Out2]): Repr[Out2, Ctx]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.collect.

    Context-preserving variant of akka.stream.scaladsl.FlowOps.collect.

    Note, that the context of elements that are filtered out is skipped as well.

    See also

    akka.stream.scaladsl.FlowOps.collect

  9. def ensuring(cond: (FlowWithContextOps[Out, Ctx, Mat]) ⇒ Boolean, msg: ⇒ Any): FlowWithContextOps[Out, Ctx, Mat]
    Implicit
    This member is added by an implicit conversion from FlowWithContextOps[Out, Ctx, Mat] to Ensuring[FlowWithContextOps[Out, Ctx, Mat]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: (FlowWithContextOps[Out, Ctx, Mat]) ⇒ Boolean): FlowWithContextOps[Out, Ctx, Mat]
    Implicit
    This member is added by an implicit conversion from FlowWithContextOps[Out, Ctx, Mat] to Ensuring[FlowWithContextOps[Out, Ctx, Mat]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean, msg: ⇒ Any): FlowWithContextOps[Out, Ctx, Mat]
    Implicit
    This member is added by an implicit conversion from FlowWithContextOps[Out, Ctx, Mat] to Ensuring[FlowWithContextOps[Out, Ctx, Mat]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean): FlowWithContextOps[Out, Ctx, Mat]
    Implicit
    This member is added by an implicit conversion from FlowWithContextOps[Out, Ctx, Mat] to Ensuring[FlowWithContextOps[Out, Ctx, Mat]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  15. def filter(pred: (Out) ⇒ Boolean): Repr[Out, Ctx]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.filter.

    Context-preserving variant of akka.stream.scaladsl.FlowOps.filter.

    Note, that the context of elements that are filtered out is skipped as well.

    See also

    akka.stream.scaladsl.FlowOps.filter

  16. def filterNot(pred: (Out) ⇒ Boolean): Repr[Out, Ctx]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.filterNot.

    Context-preserving variant of akka.stream.scaladsl.FlowOps.filterNot.

    Note, that the context of elements that are filtered out is skipped as well.

    See also

    akka.stream.scaladsl.FlowOps.filterNot

  17. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from FlowWithContextOps[Out, Ctx, Mat] to StringFormat[FlowWithContextOps[Out, Ctx, Mat]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  18. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  19. def grouped(n: Int): Repr[Seq[Out], Seq[Ctx]]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.grouped.

    Context-preserving variant of akka.stream.scaladsl.FlowOps.grouped.

    Each output group will be associated with a Seq of corresponding context elements.

    See also

    akka.stream.scaladsl.FlowOps.grouped

  20. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  21. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  22. def log(name: String, extract: (Out) ⇒ Any = ConstantFun.scalaIdentityFunction)(implicit log: LoggingAdapter = null): Repr[Out, Ctx]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.log.

  23. def map[Out2](f: (Out) ⇒ Out2): Repr[Out2, Ctx]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.map.

  24. def mapAsync[Out2](parallelism: Int)(f: (Out) ⇒ Future[Out2]): Repr[Out2, Ctx]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.mapAsync.

  25. def mapConcat[Out2](f: (Out) ⇒ Iterable[Out2]): Repr[Out2, Ctx]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.mapConcat.

    Context-preserving variant of akka.stream.scaladsl.FlowOps.mapConcat.

    The context of the input element will be associated with each of the output elements calculated from this input element.

    Example:

    def dup(element: String) = Seq(element, element)

    Input:

    ("a", 1) ("b", 2)

    inputElements.mapConcat(dup)

    Output:

    ("a", 1) ("a", 1) ("b", 2) ("b", 2)

    See also

    akka.stream.scaladsl.FlowOps.mapConcat

  26. def mapContext[Ctx2](f: (Ctx) ⇒ Ctx2): Repr[Out, Ctx2]

    Apply the given function to each context element (leaving the data elements unchanged).

  27. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  28. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  29. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  30. def sliding(n: Int, step: Int = 1): Repr[Seq[Out], Seq[Ctx]]

    Context-preserving variant of akka.stream.scaladsl.FlowOps.sliding.

    Context-preserving variant of akka.stream.scaladsl.FlowOps.sliding.

    Each output group will be associated with a Seq of corresponding context elements.

    See also

    akka.stream.scaladsl.FlowOps.sliding

  31. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  32. def toString(): String
    Definition Classes
    AnyRef → Any
  33. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  34. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  35. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  36. def [B](y: B): (FlowWithContextOps[Out, Ctx, Mat], B)
    Implicit
    This member is added by an implicit conversion from FlowWithContextOps[Out, Ctx, Mat] to ArrowAssoc[FlowWithContextOps[Out, Ctx, Mat]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @Deprecated @deprecated @throws( classOf[java.lang.Throwable] )
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from FlowWithContextOps[Out, Ctx, Mat] to any2stringadd[FlowWithContextOps[Out, Ctx, Mat]]

Inherited by implicit conversion StringFormat from FlowWithContextOps[Out, Ctx, Mat] to StringFormat[FlowWithContextOps[Out, Ctx, Mat]]

Inherited by implicit conversion Ensuring from FlowWithContextOps[Out, Ctx, Mat] to Ensuring[FlowWithContextOps[Out, Ctx, Mat]]

Inherited by implicit conversion ArrowAssoc from FlowWithContextOps[Out, Ctx, Mat] to ArrowAssoc[FlowWithContextOps[Out, Ctx, Mat]]

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