Class

com.twitter.algebird

BatchedSemigroup

Related Doc: package algebird

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class BatchedSemigroup[T] extends Semigroup[Batched[T]]

Compacting semigroup for batched values.

This semigroup ensures that the batch's tree structure has fewer than batchSize values in it. When more values are added, the tree is compacted using s.

Source
Batched.scala
Linear Supertypes
Semigroup[Batched[T]], Serializable, AnyRef, Any
Known Subclasses
BatchedMonoid
Type Hierarchy
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Inherited
  1. BatchedSemigroup
  2. Semigroup
  3. Serializable
  4. AnyRef
  5. Any
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Visibility
  1. Public
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Instance Constructors

  1. new BatchedSemigroup(batchSize: Int)(implicit arg0: Semigroup[T])

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

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    Definition Classes
    AnyRef → Any

  4. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  6. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  7. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  8. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  9. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any

  10. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  11. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  12. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  13. final def notify(): Unit

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    Definition Classes
    AnyRef

  14. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  15. def plus(a: Batched[T], b: Batched[T]): Batched[T]

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    Combines two T instances associatively.

    Combines two T instances associatively.

    returns

    result of combining l and r

    Definition Classes
    BatchedSemigroup → Semigroup

  16. def sumOption(iter: TraversableOnce[Batched[T]]): Option[Batched[T]]

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    Returns an instance of T calculated by summing all instances in iter in one pass.

    Returns an instance of T calculated by summing all instances in iter in one pass. Returns None if iter is empty, else Some[T].

    iter

    instances of T to be combined

    returns

    None if iter is empty, else an option value containing the summed T

    Definition Classes
    Semigroup
    Note

    Override if there is a faster way to compute this sum than iter.reduceLeftOption using plus.

  17. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef

  18. def toString(): String

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    Definition Classes
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  19. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  20. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  21. final def wait(arg0: Long): Unit

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    Definition Classes
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    Annotations
    @throws( ... )

Inherited from Semigroup[Batched[T]]

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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