Packages

c

org.apache.spark.sql.execution

CoalescedPartitioner

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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Inherited
  1. CoalescedPartitioner
  2. Partitioner
  3. Serializable
  4. Serializable
  5. AnyRef
  6. Any
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Visibility
  1. Public
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Instance Constructors

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

    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
    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( ... ) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(other: Any): Boolean
    Definition Classes
    CoalescedPartitioner → AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def getPartition(key: Any): Int
    Definition Classes
    CoalescedPartitioner → Partitioner
  11. def hashCode(): Int
    Definition Classes
    CoalescedPartitioner → AnyRef → Any
  12. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  13. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  16. def numPartitions: Int
    Definition Classes
    CoalescedPartitioner → Partitioner
  17. val parent: Partitioner
  18. val partitionStartIndices: Array[Int]
  19. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  20. def toString(): String
    Definition Classes
    AnyRef → Any
  21. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  22. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  23. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Inherited from Partitioner

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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