org.apache.flink.api.scala.extensions.impl.acceptPartialFunctions

OnUnfinishedKeyPairOperation

class OnUnfinishedKeyPairOperation[L, R, O] extends AnyRef

Wraps an unfinished key pair operation, allowing to use anonymous partial functions to perform extraction of items in a tuple, case class instance or collection

L

The type of the left data set items

R

The type of the right data set items

O

The type of the output data set items

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Instance Constructors

  1. new OnUnfinishedKeyPairOperation(ds: UnfinishedKeyPairOperation[L, R, O])

    ds

    The wrapped unfinished key pair operation data set

Value Members

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

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

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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

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  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 whereClause[K](fun: (L) ⇒ K)(implicit arg0: TypeInformation[K]): HalfUnfinishedKeyPairOperation[L, R, O]

    Initiates a join or co-group operation, defining the first half of the where clause with the items of the left data set that will be checked for equality with the ones provided by the second half.

    Initiates a join or co-group operation, defining the first half of the where clause with the items of the left data set that will be checked for equality with the ones provided by the second half.

    K

    The type of the key, for which type information must be known

    fun

    The function that defines the comparing item of the where clause

    returns

    A data set of Os

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    @PublicEvolving()

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