Object

org.apache.spark.sql.store

MembershipAccumulator

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object MembershipAccumulator extends AccumulatorParam[Map[InternalDistributedMember, BlockManagerId]]

Linear Supertypes
AccumulatorParam[Map[InternalDistributedMember, BlockManagerId]], AccumulableParam[Map[InternalDistributedMember, BlockManagerId], Map[InternalDistributedMember, BlockManagerId]], Serializable, AnyRef, Any
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  1. MembershipAccumulator
  2. AccumulatorParam
  3. AccumulableParam
  4. Serializable
  5. AnyRef
  6. Any
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  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. def addAccumulator(t1: Map[InternalDistributedMember, BlockManagerId], t2: Map[InternalDistributedMember, BlockManagerId]): Map[InternalDistributedMember, BlockManagerId]

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    Definition Classes
    AccumulatorParam → AccumulableParam
  5. def addInPlace(r1: Map[InternalDistributedMember, BlockManagerId], r2: Map[InternalDistributedMember, BlockManagerId]): Map[InternalDistributedMember, BlockManagerId]

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    Merge two accumulated values together.

    Merge two accumulated values together. Is allowed to modify and return the first value for efficiency (to avoid allocating objects).

    r1

    one set of accumulated data

    r2

    another set of accumulated data

    returns

    both data sets merged together

    Definition Classes
    MembershipAccumulator → AccumulableParam
  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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

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  9. def equals(arg0: Any): Boolean

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  10. def finalize(): Unit

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

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  12. def hashCode(): Int

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  13. final def isInstanceOf[T0]: Boolean

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

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  15. final def notify(): Unit

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  16. final def notifyAll(): Unit

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

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  18. def toString(): String

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  19. final def wait(): Unit

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

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

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  22. def zero(initialValue: Map[InternalDistributedMember, BlockManagerId]): Map[InternalDistributedMember, BlockManagerId]

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    Return the "zero" (identity) value for an accumulator type, given its initial value.

    Return the "zero" (identity) value for an accumulator type, given its initial value. For example, if R was a vector of N dimensions, this would return a vector of N zeroes.

    Definition Classes
    MembershipAccumulator → AccumulableParam

Inherited from AccumulatorParam[Map[InternalDistributedMember, BlockManagerId]]

Inherited from AccumulableParam[Map[InternalDistributedMember, BlockManagerId], Map[InternalDistributedMember, BlockManagerId]]

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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