FlowWithContext

Companion object FlowWithContext

final class FlowWithContext[-CtxIn, -In, +CtxOut, +Out, +Mat] extends GraphDelegate[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

A flow that provides operations which automatically propagate the context of an element. Only a subset of common operations from Flow is supported. As an escape hatch you can use FlowWithContext.via to manually provide the context propagation for otherwise unsupported operations.

An "empty" flow can be created by calling FlowWithContext[Ctx, T].

API MAY CHANGE

Annotations: @ApiMayChange()
Source: FlowWithContext.scala

Linear Supertypes

GraphDelegate[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat], Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat], AnyRef, Any

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By Inheritance

Inherited

FlowWithContext
GraphDelegate
Graph
AnyRef
Any

Implicitly

by any2stringadd
by StringFormat
by Ensuring
by ArrowAssoc

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Visibility

Public
All

Instance Constructors

new FlowWithContext(delegate: scaladsl.FlowWithContext[CtxIn, In, CtxOut, Out, Mat])

Type Members

type Shape = FlowShape[(In, CtxIn), (Out, CtxOut)]
Type-level accessor for the shape parameter of this graph.
Type-level accessor for the shape parameter of this graph.

Definition Classes
Graph

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
def +(other: String): String

Implicit
This member is added by an implicit conversion from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to any2stringadd[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]] performed by method any2stringadd in scala.Predef.
Definition Classes
any2stringadd
def ->[B](y: B): (FlowWithContext[CtxIn, In, CtxOut, Out, Mat], B)

Implicit
This member is added by an implicit conversion from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to ArrowAssoc[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc
Annotations
@inline()
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def addAttributes(attr: Attributes): Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]
Add the given attributes to this Graph.
Add the given attributes to this Graph. If the specific attribute was already present on this graph this means the added attribute will be more specific than the existing one. If this Source is a composite of multiple graphs, new attributes on the composite will be less specific than attributes set directly on the individual graphs of the composite.

Definition Classes
Graph
def asFlow(): Flow[Pair[In, CtxIn], Pair[Out, CtxOut], Mat]
Creates a regular flow of pairs (data, context).
final def asInstanceOf[T0]: T0

Definition Classes
Any
def asScala: scaladsl.FlowWithContext[CtxIn, In, CtxOut, Out, Mat]
def async(dispatcher: String, inputBufferSize: Int): Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]
Put an asynchronous boundary around this Graph
Put an asynchronous boundary around this Graph
dispatcher
Run the graph on this dispatcher
inputBufferSize
Set the input buffer to this size for the graph

Definition Classes
Graph
def async(dispatcher: String): Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]
Put an asynchronous boundary around this Graph
Put an asynchronous boundary around this Graph
dispatcher
Run the graph on this dispatcher

Definition Classes
Graph
def async: Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]
Put an asynchronous boundary around this Graph
Put an asynchronous boundary around this Graph

Definition Classes
Graph
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@native() @HotSpotIntrinsicCandidate() @throws( ... )
def collect[Out2](pf: PartialFunction[Out, Out2]): FlowWithContext[CtxIn, In, CtxOut, Out2, Mat]
Context-preserving variant of akka.stream.javadsl.Flow.collect.
Context-preserving variant of akka.stream.javadsl.Flow.collect.
Note, that the context of elements that are filtered out is skipped as well.

See also
akka.stream.javadsl.Flow.collect
def ensuring(cond: (FlowWithContext[CtxIn, In, CtxOut, Out, Mat]) ⇒ Boolean, msg: ⇒ Any): FlowWithContext[CtxIn, In, CtxOut, Out, Mat]

Implicit
This member is added by an implicit conversion from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to Ensuring[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: (FlowWithContext[CtxIn, In, CtxOut, Out, Mat]) ⇒ Boolean): FlowWithContext[CtxIn, In, CtxOut, Out, Mat]

Implicit
This member is added by an implicit conversion from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to Ensuring[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean, msg: ⇒ Any): FlowWithContext[CtxIn, In, CtxOut, Out, Mat]

Implicit
This member is added by an implicit conversion from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to Ensuring[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean): FlowWithContext[CtxIn, In, CtxOut, Out, Mat]

Implicit
This member is added by an implicit conversion from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to Ensuring[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def filter(p: Predicate[Out]): FlowWithContext[CtxIn, In, CtxOut, Out, Mat]
Context-preserving variant of akka.stream.javadsl.Flow.filter.
Context-preserving variant of akka.stream.javadsl.Flow.filter.
Note, that the context of elements that are filtered out is skipped as well.

See also
akka.stream.javadsl.Flow.filter
def filterNot(p: Predicate[Out]): FlowWithContext[CtxIn, In, CtxOut, Out, Mat]
Context-preserving variant of akka.stream.javadsl.Flow.filterNot.
Context-preserving variant of akka.stream.javadsl.Flow.filterNot.
Note, that the context of elements that are filtered out is skipped as well.

See also
akka.stream.javadsl.Flow.filterNot
def formatted(fmtstr: String): String

Implicit
This member is added by an implicit conversion from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to StringFormat[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]] performed by method StringFormat in scala.Predef.
Definition Classes
StringFormat
Annotations
@inline()
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
Annotations
@native() @HotSpotIntrinsicCandidate()
def grouped(n: Int): FlowWithContext[CtxIn, In, List[CtxOut], List[Out], Mat]
Context-preserving variant of akka.stream.javadsl.Flow.grouped.
Context-preserving variant of akka.stream.javadsl.Flow.grouped.
Each output group will be associated with a Seq of corresponding context elements.

See also
akka.stream.javadsl.Flow.grouped
def hashCode(): Int

Definition Classes
AnyRef → Any
Annotations
@native() @HotSpotIntrinsicCandidate()
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def map[Out2](f: Function[Out, Out2]): FlowWithContext[CtxIn, In, CtxOut, Out2, Mat]
Context-preserving variant of akka.stream.javadsl.Flow.map.
Context-preserving variant of akka.stream.javadsl.Flow.map.

See also
akka.stream.javadsl.Flow.map
def mapAsync[Out2](parallelism: Int, f: Function[Out, CompletionStage[Out2]]): FlowWithContext[CtxIn, In, CtxOut, Out2, Mat]
def mapConcat[Out2](f: Function[Out, _ <: Iterable[Out2]]): FlowWithContext[CtxIn, In, CtxOut, Out2, Mat]
Context-preserving variant of akka.stream.javadsl.Flow.mapConcat.
Context-preserving variant of akka.stream.javadsl.Flow.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.javadsl.Flow.mapConcat
def mapContext[CtxOut2](extractContext: Function[CtxOut, CtxOut2]): FlowWithContext[CtxIn, In, CtxOut2, Out, Mat]
Apply the given function to each context element (leaving the data elements unchanged).
def named(name: String): Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

Definition Classes
Graph
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
Annotations
@native() @HotSpotIntrinsicCandidate()
final def notifyAll(): Unit

Definition Classes
AnyRef
Annotations
@native() @HotSpotIntrinsicCandidate()
final def shape: FlowShape[(In, CtxIn), (Out, CtxOut)]
The shape of a graph is all that is externally visible: its inlets and outlets.
The shape of a graph is all that is externally visible: its inlets and outlets.

Definition Classes
GraphDelegate → Graph
def sliding(n: Int, step: Int = 1): FlowWithContext[CtxIn, In, List[CtxOut], List[Out], Mat]
Context-preserving variant of akka.stream.javadsl.Flow.sliding.
Context-preserving variant of akka.stream.javadsl.Flow.sliding.
Each output group will be associated with a Seq of corresponding context elements.

See also
akka.stream.javadsl.Flow.sliding
def statefulMapConcat[Out2](f: Creator[Function[Out, Iterable[Out2]]]): FlowWithContext[CtxIn, In, CtxOut, Out2, Mat]
Context-preserving variant of akka.stream.javadsl.Flow.statefulMapConcat.
Context-preserving variant of akka.stream.javadsl.Flow.statefulMapConcat.
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.statefulMapConcat(() => dup)
Output:
("a", 1) ("a", 1) ("b", 2) ("b", 2)

See also
akka.stream.javadsl.Flow.statefulMapConcat
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
def via[CtxOut2, Out2, Mat2](viaFlow: Graph[FlowShape[Pair[Out, CtxOut], Pair[Out2, CtxOut2]], Mat2]): FlowWithContext[CtxIn, In, CtxOut2, Out2, Mat]
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.javadsl.Flow.via
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@native() @throws( ... )
final def withAttributes(attr: Attributes): Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

Definition Classes
GraphDelegate → Graph
def →[B](y: B): (FlowWithContext[CtxIn, In, CtxOut, Out, Mat], B)

Implicit
This member is added by an implicit conversion from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to ArrowAssoc[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc

Packages

FlowWithContext

Companion object FlowWithContext

final class FlowWithContext[-CtxIn, -In, +CtxOut, +Out, +Mat] extends GraphDelegate[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

Instance Constructors

Type Members

Value Members

Deprecated Value Members

Inherited from GraphDelegate[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

Inherited from Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to any2stringadd[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]]

Inherited by implicit conversion StringFormat from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to StringFormat[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]]

Inherited by implicit conversion Ensuring from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to Ensuring[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]]

Inherited by implicit conversion ArrowAssoc from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to ArrowAssoc[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]]

Ungrouped

Packages

FlowWithContext 

Companion object FlowWithContext

final class FlowWithContext[-CtxIn, -In, +CtxOut, +Out, +Mat] extends GraphDelegate[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

Instance Constructors

Type Members

Value Members

Deprecated Value Members

Inherited from GraphDelegate[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

Inherited from Graph[FlowShape[(In, CtxIn), (Out, CtxOut)], Mat]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to any2stringadd[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]]

Inherited by implicit conversion StringFormat from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to StringFormat[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]]

Inherited by implicit conversion Ensuring from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to Ensuring[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]]

Inherited by implicit conversion ArrowAssoc from FlowWithContext[CtxIn, In, CtxOut, Out, Mat] to ArrowAssoc[FlowWithContext[CtxIn, In, CtxOut, Out, Mat]]

Ungrouped

FlowWithContext