Class

org.apache.spark.sql.execution

CoalescedPartitioner

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class CoalescedPartitioner extends Partitioner

A Partitioner that might group together one or more partitions from the parent.

Linear Supertypes
Partitioner, Serializable, Serializable, AnyRef, Any
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  1. CoalescedPartitioner
  2. Partitioner
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  4. Serializable
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Visibility
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Instance Constructors

  1. new CoalescedPartitioner(parent: Partitioner, partitionStartIndices: Array[Int])

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    parent

    a parent partitioner

    partitionStartIndices

    indices of partitions in parent that should create new partitions in child (this should be an array of increasing partition IDs). For example, if we have a parent with 5 partitions, and partitionStartIndices is [0, 2, 4], we get three output partitions, corresponding to partition ranges [0, 1], [2, 3] and [4] of the parent partitioner.

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(other: Any): Boolean

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    Definition Classes
    CoalescedPartitioner → 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 getPartition(key: Any): Int

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    Definition Classes
    CoalescedPartitioner → Partitioner
  11. def hashCode(): Int

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    Definition Classes
    CoalescedPartitioner → AnyRef → Any
  12. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  13. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  14. final def notify(): Unit

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    Definition Classes
    AnyRef
  15. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  16. def numPartitions: Int

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    Definition Classes
    CoalescedPartitioner → Partitioner
  17. val parent: Partitioner

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    a parent partitioner

  18. val partitionStartIndices: Array[Int]

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    indices of partitions in parent that should create new partitions in child (this should be an array of increasing partition IDs).

    indices of partitions in parent that should create new partitions in child (this should be an array of increasing partition IDs). For example, if we have a parent with 5 partitions, and partitionStartIndices is [0, 2, 4], we get three output partitions, corresponding to partition ranges [0, 1], [2, 3] and [4] of the parent partitioner.

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

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    Definition Classes
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  20. def toString(): String

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    Definition Classes
    AnyRef → Any
  21. final def wait(): Unit

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

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    Definition Classes
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    Annotations
    @throws( ... )
  23. final def wait(arg0: Long): Unit

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    Definition Classes
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    Annotations
    @throws( ... )

Inherited from Partitioner

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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