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c

com.spotify.scio.estimators

ApproximateUniqueCounter

case class ApproximateUniqueCounter[T](sampleSize: Int) extends ApproxDistinctCounter[T] with Product with Serializable

ApproxDistinctCounter impl for org.apache.beam.sdk.transforms.ApproximateUnique with sample size.

Count approximate number of distinct values for each key in the SCollection.

sampleSize

the number of entries in the statistical sample; the higher this number, the more accurate the estimate will be; should be >= 16.

Source
ApproxDistinctCounter.scala
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Inherited
  1. ApproximateUniqueCounter
  2. Serializable
  3. Product
  4. Equals
  5. ApproxDistinctCounter
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new ApproximateUniqueCounter(sampleSize: Int)

    sampleSize

    the number of entries in the statistical sample; the higher this number, the more accurate the estimate will be; should be >= 16.

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(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def estimateDistinctCount(in: SCollection[T]): SCollection[Long]

    Return a SCollection with single (Long)value which is the estimated distinct count in the given SCollection with type T

    Return a SCollection with single (Long)value which is the estimated distinct count in the given SCollection with type T

    Definition Classes
    ApproximateUniqueCounterApproxDistinctCounter
  8. def estimateDistinctCountPerKey[K](in: SCollection[(K, T)]): SCollection[(K, Long)]

    Approximate distinct element per each key in the given key value SCollection.

    Approximate distinct element per each key in the given key value SCollection. This will output estimated distinct count per each unique key.

    Definition Classes
    ApproximateUniqueCounterApproxDistinctCounter
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  10. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. def productElementNames: Iterator[String]
    Definition Classes
    Product
  16. val sampleSize: Int
  17. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  18. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  19. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  20. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from ApproxDistinctCounter[T]

Inherited from AnyRef

Inherited from Any

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