Packages

final case class None[-I, +O, +E](status: Status[E], evolution: Evolution[I, O, E]) extends Yield[I, O, E] with Product with Serializable

A yield carrying no output — a filter dropping an input, a stage with nothing to report yet. The status and the evolution are still there, so the pipeline continues as usual.

I

the input type of the stages held by the evolution (contravariant)

O

the output type never produced here (covariant)

E

the error type (covariant)

status

the status of the run that produced this yield

evolution

the continuation

Linear Supertypes
Serializable, Serializable, Product, Equals, Yield[I, O, E], AnyRef, Any
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  1. None
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. Yield
  7. AnyRef
  8. Any
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Visibility
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Instance Constructors

  1. new None(status: Status[E], evolution: Evolution[I, O, E])

    status

    the status of the run that produced this yield

    evolution

    the continuation

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @IntrinsicCandidate()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. val evolution: Evolution[I, O, E]

    The continuation: which stage handles the next input, given status.

    The continuation: which stage handles the next input, given status.

    Definition Classes
    None → Yield
  8. def evolve(): Stage[I, O, E]

    The stage that handles the next input: the continuation this yield's own status selects.

    The stage that handles the next input: the continuation this yield's own status selects.

    Going through the evolution directly is the exception, not the rule — the status a yield carries is the one its continuation must be chosen by, and this method is what pairs them.

    Definition Classes
    Yield
  9. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  10. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  11. def map[_I, _O, _E](mapOut: (O) ⇒ _O, mapStatus: (Status[E]) ⇒ Status[_E], mapEvolution: (Evolution[I, O, E]) ⇒ Evolution[_I, _O, _E]): Yield[_I, _O, _E]

    Transforms all three components at once.

    Transforms all three components at once. mapOut is not called on a Yield.None, which has no output to transform, but is still required so that the result type is the same for both variants.

    Definition Classes
    None → Yield
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  15. def outOption: Option[O]

    The output as an Option — for when only its presence matters.

    The output as an Option — for when only its presence matters. Prefer matching on Yield.Some / Yield.None when the status or the evolution is needed too.

    Definition Classes
    None → Yield
  16. val status: Status[E]

    The status of the run that produced this yield.

    The status of the run that produced this yield.

    Definition Classes
    None → Yield
  17. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  18. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  19. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  20. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Deprecated Value Members

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

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from Yield[I, O, E]

Inherited from AnyRef

Inherited from Any

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