Class

org.apache.flink.api.scala

UnfinishedCoGroupOperation

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class UnfinishedCoGroupOperation[L, R] extends UnfinishedKeyPairOperation[L, R, CoGroupDataSet[L, R]]

An unfinished coGroup operation that results from DataSet.coGroup The keys for the left and right side must be specified using first where and then equalTo. For example:

val left = ...
val right = ...
val coGroupResult = left.coGroup(right).where(...).equalTo(...)
L

The type of the left input of the coGroup.

R

The type of the right input of the coGroup.

Annotations
@Public()
Linear Supertypes
UnfinishedKeyPairOperation[L, R, CoGroupDataSet[L, R]], AnyRef, Any
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  1. UnfinishedCoGroupOperation
  2. UnfinishedKeyPairOperation
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Instance Constructors

  1. new UnfinishedCoGroupOperation(leftInput: DataSet[L], rightInput: DataSet[R])(implicit arg0: ClassTag[L], arg1: ClassTag[R])

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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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    protected[java.lang]
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    @throws( ... )
  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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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  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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    @throws( ... )
  18. final def wait(arg0: Long, arg1: Int): Unit

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

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  20. def where[K](fun: KeySelector[L, K])(implicit arg0: TypeInformation[K]): HalfUnfinishedKeyPairOperation[L, R, CoGroupDataSet[L, R]]

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    Specify the key selector function for the left side of the key based operation.

    Specify the key selector function for the left side of the key based operation. This returns a HalfUnfinishedKeyPairOperation on which equalTo must be called to specify the key for the right side. The result after specifying the right side key is the finished operation.

    Definition Classes
    UnfinishedKeyPairOperation
  21. def where[K](fun: (L) ⇒ K)(implicit arg0: TypeInformation[K]): HalfUnfinishedKeyPairOperation[L, R, CoGroupDataSet[L, R]]

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    Specify the key selector function for the left side of the key based operation.

    Specify the key selector function for the left side of the key based operation. This returns a HalfUnfinishedKeyPairOperation on which equalTo must be called to specify the key for the right side. The result after specifying the right side key is the finished operation.

    Definition Classes
    UnfinishedKeyPairOperation
  22. def where(firstLeftField: String, otherLeftFields: String*): HalfUnfinishedKeyPairOperation[L, R, CoGroupDataSet[L, R]]

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    Specify the key fields for the left side of the key based operation.

    Specify the key fields for the left side of the key based operation. This returns a HalfUnfinishedKeyPairOperation on which equalTo must be called to specify the key for the right side. The result after specifying the right side key is the finished operation.

    Definition Classes
    UnfinishedKeyPairOperation
  23. def where(leftKeys: Int*): HalfUnfinishedKeyPairOperation[L, R, CoGroupDataSet[L, R]]

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    Specify the key fields for the left side of the key based operation.

    Specify the key fields for the left side of the key based operation. This returns a HalfUnfinishedKeyPairOperation on which equalTo must be called to specify the key for the right side. The result after specifying the right side key is the finished operation.

    This only works on Tuple DataSet.

    Definition Classes
    UnfinishedKeyPairOperation

Inherited from UnfinishedKeyPairOperation[L, R, CoGroupDataSet[L, R]]

Inherited from AnyRef

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