trait Signal[+A] extends Observable[A] with BaseObservable[Signal, A] with SignalSource[A]

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Inherited
  1. Signal
  2. SignalSource
  3. Observable
  4. BaseObservable
  5. Named
  6. Source
  7. AnyRef
  8. Any
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Visibility
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Abstract Value Members

  1. abstract def addExternalObserver(observer: Observer[A], owner: Owner): Subscription
    Attributes
    protected[this]
    Definition Classes
    BaseObservable
  2. abstract def addInternalObserver(observer: InternalObserver[A]): Unit

    Child observable should call this method on its parents when it is started.

    Child observable should call this method on its parents when it is started. This observable calls onStart if this action has given it its first observer (internal or external).

    Attributes
    protected[airstream]
    Definition Classes
    BaseObservable
  3. abstract def addObserver(observer: Observer[A])(implicit owner: Owner): Subscription

    Subscribe an external observer to this observable

    Subscribe an external observer to this observable

    Definition Classes
    BaseObservable
  4. abstract def numAllObservers: Int

    Total number of internal and external observers

    Total number of internal and external observers

    Attributes
    protected
    Definition Classes
    BaseObservable
  5. abstract def removeExternalObserverNow(observer: Observer[A]): Unit
    Attributes
    protected[airstream]
    Definition Classes
    BaseObservable
  6. abstract def removeInternalObserverNow(observer: InternalObserver[A]): Unit

    Child observable should call Transaction.removeInternalObserver(parent, childInternalObserver) when it is stopped.

    Child observable should call Transaction.removeInternalObserver(parent, childInternalObserver) when it is stopped. This observable calls onStop if this action has removed its last observer (internal or external).

    Attributes
    protected[airstream]
    Definition Classes
    BaseObservable
  7. abstract val topoRank: Int

    Note: Use Protected.topoRank(observable) to read another observable's topoRank if needed

    Note: Use Protected.topoRank(observable) to read another observable's topoRank if needed

    Attributes
    protected
    Definition Classes
    BaseObservable
  8. abstract def tryNow(): Try[A]

    Get the signal's current value

    Get the signal's current value

    Attributes
    protected[airstream]

Concrete 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 changes: EventStream[A]
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @IntrinsicCandidate()
  7. def compose[B](operator: (Signal[A]) => Signal[B]): Signal[B]

    operator

    Note: Must not throw!

  8. def composeAll[B](changesOperator: (EventStream[A]) => EventStream[B], initialOperator: (Try[A]) => Try[B]): Signal[B]

    changesOperator

    Note: Must not throw!

    initialOperator

    Note: Must not throw!

  9. def composeChanges[AA >: A](operator: (EventStream[A]) => EventStream[AA]): Signal[AA]

    operator

    Note: Must not throw!

  10. def debugWith(debugger: Debugger[A]): Signal[A]

    See also debug methods in com.raquo.airstream.debug.DebuggableObservable

    See also debug methods in com.raquo.airstream.debug.DebuggableObservable

    Definition Classes
    Signal → BaseObservable
  11. def defaultDisplayName: String

    This is the method that subclasses override to preserve the user's ability to set custom display names.

    This is the method that subclasses override to preserve the user's ability to set custom display names.

    Attributes
    protected
    Definition Classes
    Named
  12. final def displayName: String
    Definition Classes
    Named
  13. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  15. def flatMap[B, Inner[_], Output[+_] <: Observable[_]](compose: (A) => Inner[B])(implicit strategy: FlattenStrategy[[+_]Signal[_], Inner, Output]): Output[B]

    compose

    Note: guarded against exceptions

    Definition Classes
    BaseObservable
    Annotations
    @inline()
  16. def foldLeft[B](makeInitial: (A) => B)(fn: (B, A) => B): Signal[B]

    makeInitial

    Note: guarded against exceptions

    fn

    Note: guarded against exceptions

  17. def foldLeftRecover[B](makeInitial: (Try[A]) => Try[B])(fn: (Try[B], Try[A]) => Try[B]): Signal[B]

    makeInitial

    currentParentValue => initialValue Note: must not throw

    fn

    (currentValue, nextParentValue) => nextValue

  18. def foreach(onNext: (A) => Unit)(implicit owner: Owner): Subscription

    Create an external observer from a function and subscribe it to this observable.

    Create an external observer from a function and subscribe it to this observable.

    Note: since you won't have a reference to the observer, you will need to call Subscription.kill() to unsubscribe

    Definition Classes
    BaseObservable
  19. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  20. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  21. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  22. def isStarted: Boolean
    Attributes
    protected
    Definition Classes
    BaseObservable
  23. def map[B](project: (A) => B): Signal[B]

    project

    Note: guarded against exceptions

    Definition Classes
    Signal → BaseObservable
  24. def mapTo[B](value: => B): Signal[B]

    value is passed by name, so it will be evaluated whenever the Observable fires.

    value is passed by name, so it will be evaluated whenever the Observable fires. Use it to sample mutable values (e.g. myInput.ref.value in Laminar).

    See also: mapToStrict

    value

    Note: guarded against exceptions

    Definition Classes
    BaseObservable
  25. def mapToStrict[B](value: B): Signal[B]

    value is evaluated strictly, only once, when this method is called.

    value is evaluated strictly, only once, when this method is called.

    See also: mapTo

    Definition Classes
    BaseObservable
  26. val maybeDisplayName: UndefOr[String]

    This name should identify the instance (observable or observer) uniquely enough for your purposes.

    This name should identify the instance (observable or observer) uniquely enough for your purposes. You can read / write it to simplify debugging. Airstream uses this in debugLog* methods. In the future, we will expand on this. #TODO[Debug] We don't use this to its full potential yet.

    Attributes
    protected[this]
    Definition Classes
    Named
  27. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  28. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  29. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  30. def now(): A

    Get the signal's current value

    Get the signal's current value

    Attributes
    protected[airstream]
    Exceptions thrown

    the signal's error if its current value is an error

  31. def observe(implicit owner: Owner): OwnedSignal[A]

    Add a noop observer to this signal to ensure that it's started.

    Add a noop observer to this signal to ensure that it's started. This lets you access .now and .tryNow on the resulting StrictSignal.

    You can use myStream.toWeakSignal.observe.tryNow() to read the last emitted value from event streams just as well.

  32. def onAddedExternalObserver(observer: Observer[A]): Unit
    Attributes
    protected
    Definition Classes
    Signal → BaseObservable
  33. def onStart(): Unit

    Here we need to ensure that Signal's default value has been evaluated.

    Here we need to ensure that Signal's default value has been evaluated. It is important because if a Signal gets started by means of its .changes stream acquiring an observer, nothing else would trigger this evaluation because initialValue is not directly used by the .changes stream. However, when the events start coming in, we will need this initialValue because Signal needs to know when its current value has changed.

    Attributes
    protected[this]
    Definition Classes
    Signal → BaseObservable
  34. def onStop(): Unit

    This method is fired when this observable stops working (listening for parent events and/or firing its own events), that is, when it loses its last Observer (internal or external).

    This method is fired when this observable stops working (listening for parent events and/or firing its own events), that is, when it loses its last Observer (internal or external).

    onStop can potentially be called multiple times, the second time being after it has started again (see onStart).

    Attributes
    protected
    Definition Classes
    BaseObservable
  35. implicit def protectedAccessEvidence: Protected
    Attributes
    protected
    Definition Classes
    BaseObservable
    Annotations
    @inline()
  36. def recover[B >: A](pf: PartialFunction[Throwable, Option[B]]): Signal[B]

    pf

    Note: guarded against exceptions

    Definition Classes
    Signal → BaseObservable
  37. def recoverIgnoreErrors: Signal[A]
    Definition Classes
    BaseObservable
  38. def recoverToTry: Signal[Try[A]]

    Convert this to an observable that emits Failure(err) instead of erroring

    Convert this to an observable that emits Failure(err) instead of erroring

    Definition Classes
    Signal → BaseObservable
  39. def setDisplayName(name: String): Signal.this.type

    Set the display name for this instance (observable or observer).

    Set the display name for this instance (observable or observer). - This method modifies the instance and returns this. It does not create a new instance. - New name you set will override the previous name, if any. This might change in the future. For the sake of sanity, don't call this more than once for the same instance. - If display name is set, toString will output it instead of the standard type@hashcode string

    Definition Classes
    Named
  40. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  41. def toObservable: Signal[A]
    Definition Classes
    Signal → SignalSource → Source
  42. def toSignalIfStream[B >: A](ifStream: (EventStream[A]) => Signal[B]): Signal[B]
    Definition Classes
    BaseObservable
  43. def toStreamIfSignal[B >: A](ifSignal: (Signal[A]) => EventStream[B]): EventStream[B]
    Definition Classes
    BaseObservable
  44. final def toString(): String

    Override defaultDisplayName instead of this, if you need to.

    Override defaultDisplayName instead of this, if you need to.

    Definition Classes
    Named → AnyRef → Any
  45. def toWeakSignal: Signal[Option[A]]

    Convert this observable to a signal of Option[A].

    Convert this observable to a signal of Option[A]. If it is a stream, set initial value to None.

    Definition Classes
    BaseObservable
  46. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  47. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  48. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

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

Inherited from SignalSource[A]

Inherited from Observable[A]

Inherited from BaseObservable[[+_]Signal[_], A]

Inherited from Named

Inherited from Source[A]

Inherited from AnyRef

Inherited from Any

Ungrouped