Class

org.apache.flink.streaming.api.scala

DataStreamUtils

Related Doc: package scala

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class DataStreamUtils[T] extends AnyRef

This class provides simple utility methods for collecting a DataStream, effectively enriching it with the functionality encapsulated by DataStreamUtils.

This experimental class is relocated from flink-streaming-contrib.

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Instance Constructors

  1. new DataStreamUtils(self: DataStream[T])(implicit arg0: TypeInformation[T], arg1: ClassTag[T])

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    self

    DataStream

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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  6. def collect(): Iterator[T]

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    Returns a scala iterator to iterate over the elements of the DataStream.

    Returns a scala iterator to iterate over the elements of the DataStream.

    returns

    The iterator

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

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  8. def equals(arg0: Any): Boolean

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  9. def finalize(): Unit

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  10. final def getClass(): Class[_]

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  11. def hashCode(): Int

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  12. final def isInstanceOf[T0]: Boolean

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

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  14. final def notify(): Unit

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  15. final def notifyAll(): Unit

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  16. def reinterpretAsKeyedStream[K](keySelector: (T) ⇒ K)(implicit arg0: TypeInformation[K]): KeyedStream[T, K]

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    Reinterprets the given DataStream as a KeyedStream, which extracts keys with the given KeySelectorWithType.

    Reinterprets the given DataStream as a KeyedStream, which extracts keys with the given KeySelectorWithType.

    IMPORTANT: For every partition of the base stream, the keys of events in the base stream must be partitioned exactly in the same way as if it was created through a DataStream#keyBy(KeySelectorWithType).

    keySelector

    Function that defines how keys are extracted from the data stream.

    returns

    The reinterpretation of the DataStream as a KeyedStream.

  17. val self: DataStream[T]

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    DataStream

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

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  19. def toString(): String

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  20. final def wait(): Unit

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

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

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