Class

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

OnDataStream

Related Doc: package acceptPartialFunctions

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class OnDataStream[T] extends AnyRef

Wraps a data stream, allowing to use anonymous partial functions to perform extraction of items in a tuple, case class instance or collection

T

The type of the data stream items

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Instance Constructors

  1. new OnDataStream(stream: DataStream[T])

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    stream

    The wrapped data stream

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

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  7. def equals(arg0: Any): Boolean

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  8. def filterWith(fun: (T) ⇒ Boolean): DataStream[T]

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    Applies a predicate fun to each item of the stream, keeping only those for which the predicate holds

    Applies a predicate fun to each item of the stream, keeping only those for which the predicate holds

    fun

    The predicate to be tested on each item

    returns

    A dataset of R

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    @PublicEvolving()

  9. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )

  10. def flatMapWith[R](fun: (T) ⇒ TraversableOnce[R])(implicit arg0: TypeInformation[R]): DataStream[R]

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    Applies a function fun to each item of the stream, producing a collection of items that will be flattened in the resulting stream

    Applies a function fun to each item of the stream, producing a collection of items that will be flattened in the resulting stream

    R

    The type of the items in the returned stream

    fun

    The function to be applied to each item

    returns

    A dataset of R

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    @PublicEvolving()

  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. def keyingBy[K](fun: (T) ⇒ K)(implicit arg0: TypeInformation[K]): KeyedStream[T, K]

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    Keys the items according to a keying function fun

    Keys the items according to a keying function fun

    K

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

    fun

    The keying function

    returns

    A stream of Ts keyed by Ks

    Annotations
    @PublicEvolving()

  15. def mapWith[R](fun: (T) ⇒ R)(implicit arg0: TypeInformation[R]): DataStream[R]

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    Applies a function fun to each item of the stream

    Applies a function fun to each item of the stream

    R

    The type of the items in the returned stream

    fun

    The function to be applied to each item

    returns

    A dataset of R

    Annotations
    @PublicEvolving()

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

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  17. final def notify(): Unit

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  18. final def notifyAll(): Unit

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

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  20. def toString(): String

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  21. final def wait(): Unit

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    @throws( ... )

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

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

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