Trait

com.twitter.algebird

StatefulSummer

Related Doc: package algebird

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trait StatefulSummer[V] extends Buffered[V, V]

A Stateful summer is something that is potentially more efficient (a buffer, a cache, etc...) that has the same result as a sum: Law 1: Semigroup.sumOption(items) == (Monoid.plus(items.map { stateful.put(_) }.filter { _.isDefined }, stateful.flush) && stateful.isFlushed) Law 2: isFlushed == flush.isEmpty

Source
StatefulSummer.scala
Linear Supertypes
Buffered[V, V], Serializable, AnyRef, Any
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Abstract Value Members

  1. abstract def flush: Option[V]

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    Definition Classes
    Buffered
  2. abstract def isFlushed: Boolean

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    Buffered
  3. abstract def put(i: V): Option[V]

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    Buffered
  4. abstract def semigroup: Semigroup[V]

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Concrete Value Members

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

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

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    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

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    Any
  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
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    AnyRef
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    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

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    AnyRef
  7. def equals(arg0: Any): Boolean

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    AnyRef → Any
  8. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]

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  10. def hashCode(): Int

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    AnyRef → Any
  11. final def isInstanceOf[T0]: Boolean

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

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    AnyRef
  13. final def notify(): Unit

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    AnyRef
  14. final def notifyAll(): Unit

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

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  16. def toString(): String

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  17. final def wait(): Unit

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    @throws( ... )
  18. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )
  19. final def wait(arg0: Long): Unit

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Inherited from Buffered[V, V]

Inherited from Serializable

Inherited from AnyRef

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