Trait

com.datawizards.sparklocal.accumulator

AccumulatorV2API

Related Doc: package accumulator

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trait AccumulatorV2API[IN, OUT] extends Serializable

Linear Supertypes
Serializable, Serializable, AnyRef, Any
Known Subclasses
AccumulatorV2APIScalaImpl, AccumulatorV2APISparkImpl, CollectionAccumulatorAPI, CollectionAccumulatorAPIScalaImpl, CollectionAccumulatorAPISparkImpl, DoubleAccumulatorAPI, DoubleAccumulatorAPIScalaImpl, DoubleAccumulatorAPISparkImpl, LongAccumulatorAPI, LongAccumulatorAPIScalaImpl, LongAccumulatorAPISparkImpl
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  1. AccumulatorV2API
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Visibility
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Abstract Value Members

  1. abstract def add(v: IN): Unit

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    Takes the inputs and accumulates.

  2. abstract def copy(): AccumulatorV2API[IN, OUT]

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    Creates a new copy of this accumulator.

  3. abstract def copyAndReset(): AccumulatorV2API[IN, OUT]

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    Creates a new copy of this accumulator, which is zero value.

    Creates a new copy of this accumulator, which is zero value. i.e. call isZero on the copy must return true.

  4. abstract def id: Long

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    Returns the id of this accumulator, can only be called after registration.

  5. abstract def isRegistered: Boolean

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    Returns true if this accumulator has been registered.

    Returns true if this accumulator has been registered.

    Note

    All accumulators must be registered before use, or it will throw exception.

  6. abstract def isZero: Boolean

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    Returns if this accumulator is zero value or not.

    Returns if this accumulator is zero value or not. e.g. for a counter accumulator, 0 is zero value; for a list accumulator, Nil is zero value.

  7. abstract def merge(other: AccumulatorV2API[IN, OUT]): Unit

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    Merges another same-type accumulator into this one and update its state, i.e.

    Merges another same-type accumulator into this one and update its state, i.e. this should be merge-in-place.

  8. abstract def name: Option[String]

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    Returns the name of this accumulator, can only be called after registration.

  9. abstract def reset(): Unit

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    Resets this accumulator, which is zero value.

    Resets this accumulator, which is zero value. i.e. call isZero must return true.

  10. abstract def value: OUT

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    Defines the current value of this accumulator

Concrete Value Members

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

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  2. final def ##(): Int

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

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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

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  10. def hashCode(): Int

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  11. final def isInstanceOf[T0]: Boolean

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

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  13. final def notify(): Unit

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  14. final def notifyAll(): Unit

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

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

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Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

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