Trait/Object

fs2.concurrent

Queue

Related Docs: object Queue | package concurrent

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trait Queue[F[_], A] extends Enqueue[F, A] with Dequeue1[F, A] with DequeueChunk1[F, Id, A] with Dequeue[F, A]

A queue of elements. Operations are all nonblocking in their implementations, but may be 'semantically' blocking. For instance, a queue may have a bound on its size, in which case enqueuing may block (be delayed asynchronously) until there is an offsetting dequeue.

Self Type
Queue[F, A]
Source
Queue.scala
Linear Supertypes
Dequeue[F, A], DequeueChunk1[F, Id, A], Dequeue1[F, A], Enqueue[F, A], AnyRef, Any
Known Subclasses
Ordering
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Inherited
  1. Queue
  2. Dequeue
  3. DequeueChunk1
  4. Dequeue1
  5. Enqueue
  6. AnyRef
  7. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def dequeue1: F[A]

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    Dequeues one A from this queue.

    Dequeues one A from this queue. Completes once one is ready.

    Definition Classes
    Dequeue1
  2. abstract def dequeueBatch: Pipe[F, Int, A]

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    Provides a pipe that converts a stream of batch sizes in to a stream of elements by dequeuing batches of the specified size.

    Provides a pipe that converts a stream of batch sizes in to a stream of elements by dequeuing batches of the specified size.

    Definition Classes
    Dequeue
  3. abstract def dequeueChunk(maxSize: Int): Stream[F, A]

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    Dequeues elements from the queue, ensuring elements are dequeued in chunks not exceeding maxSize.

    Dequeues elements from the queue, ensuring elements are dequeued in chunks not exceeding maxSize.

    Definition Classes
    Dequeue
  4. abstract def dequeueChunk1(maxSize: Int): F[Id[Chunk[A]]]

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    Dequeues one Chunk[A] with no more than maxSize elements.

    Dequeues one Chunk[A] with no more than maxSize elements. Completes once one is ready.

    Definition Classes
    DequeueChunk1
  5. abstract def enqueue1(a: A): F[Unit]

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    Enqueues one element to this Queue.

    Enqueues one element to this Queue. If the queue is full this waits until queue has space.

    This completes after a has been successfully enqueued to this Queue

    Definition Classes
    Enqueue
  6. abstract def offer1(a: A): F[Boolean]

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    Offers one element to this Queue.

    Offers one element to this Queue.

    Evaluates to false if the queue is full, indicating the a was not queued up. Evaluates to true if the a was queued up successfully.

    a

    A to enqueue

    Definition Classes
    Enqueue
  7. abstract def tryDequeue1: F[Option[A]]

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    Tries to dequeue a single element.

    Tries to dequeue a single element. Unlike dequeue1, this method does not semantically block until a chunk is available - instead, None is returned immediately.

    Definition Classes
    Dequeue1
  8. abstract def tryDequeueChunk1(maxSize: Int): F[Option[Id[Chunk[A]]]]

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    Tries to dequeue a single chunk of no more than max size elements.

    Tries to dequeue a single chunk of no more than max size elements. Unlike dequeueChunk1, this method does not semantically block until a chunk is available - instead, None is returned immediately.

    Definition Classes
    DequeueChunk1

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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

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

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    Implicit information
    This member is added by an implicit conversion from Queue[F, A] to any2stringadd[Queue[F, A]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (Queue[F, A], B)

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    Implicit information
    This member is added by an implicit conversion from Queue[F, A] to ArrowAssoc[Queue[F, A]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  7. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @throws( ... )
  8. def dequeue: Stream[F, A]

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    Dequeues elements from the queue.

    Dequeues elements from the queue.

    Definition Classes
    Dequeue
  9. def enqueue: Sink[F, A]

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    Enqueues each element of the input stream to this queue by calling enqueue1 on each element.

    Enqueues each element of the input stream to this queue by calling enqueue1 on each element.

    Definition Classes
    Enqueue
  10. def ensuring(cond: (Queue[F, A]) ⇒ Boolean, msg: ⇒ Any): Queue[F, A]

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    Implicit information
    This member is added by an implicit conversion from Queue[F, A] to Ensuring[Queue[F, A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: (Queue[F, A]) ⇒ Boolean): Queue[F, A]

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    Implicit information
    This member is added by an implicit conversion from Queue[F, A] to Ensuring[Queue[F, A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean, msg: ⇒ Any): Queue[F, A]

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    Implicit information
    This member is added by an implicit conversion from Queue[F, A] to Ensuring[Queue[F, A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. def ensuring(cond: Boolean): Queue[F, A]

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    Implicit information
    This member is added by an implicit conversion from Queue[F, A] to Ensuring[Queue[F, A]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. final def eq(arg0: AnyRef): Boolean

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

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    Definition Classes
    AnyRef → Any
  16. def formatted(fmtstr: String): String

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    Implicit information
    This member is added by an implicit conversion from Queue[F, A] to StringFormat[Queue[F, A]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  17. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate()
  18. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate()
  19. def imap[B](f: (A) ⇒ B)(g: (B) ⇒ A)(implicit F: Functor[F]): Queue[F, B]

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    Returns an alternate view of this Queue where its elements are of type B, given two functions, A => B and B => A.

  20. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  21. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  22. final def notify(): Unit

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

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    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate()
  24. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  25. def toString(): String

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    Definition Classes
    AnyRef → Any
  26. final def wait(arg0: Long, arg1: Int): Unit

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

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  29. def [B](y: B): (Queue[F, A], B)

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    Implicit information
    This member is added by an implicit conversion from Queue[F, A] to ArrowAssoc[Queue[F, A]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Deprecated Value Members

  1. def finalize(): Unit

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    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 Dequeue[F, A]

Inherited from DequeueChunk1[F, Id, A]

Inherited from Dequeue1[F, A]

Inherited from Enqueue[F, A]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from Queue[F, A] to any2stringadd[Queue[F, A]]

Inherited by implicit conversion StringFormat from Queue[F, A] to StringFormat[Queue[F, A]]

Inherited by implicit conversion Ensuring from Queue[F, A] to Ensuring[Queue[F, A]]

Inherited by implicit conversion ArrowAssoc from Queue[F, A] to ArrowAssoc[Queue[F, A]]

Ungrouped