Class

org.apache.flink.streaming.api.scala.function

RichWindowFunction

Related Doc: package function

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abstract class RichWindowFunction[IN, OUT, KEY, W <: Window] extends AbstractRichFunction with WindowFunction[IN, OUT, KEY, W]

Rich variant of the org.apache.flink.streaming.api.scala.function.WindowFunction.

As a org.apache.flink.api.common.functions.RichFunction, it gives access to the org.apache.flink.api.common.functions.RuntimeContext and provides setup and tear-down methods.

IN

The type of the input value.

OUT

The type of the output value.

KEY

The type of the key.

W

The type of Window that this window function can be applied on.

Linear Supertypes
WindowFunction[IN, OUT, KEY, W], AbstractRichFunction, RichFunction, Function, Serializable, AnyRef, Any
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Inherited
  1. RichWindowFunction
  2. WindowFunction
  3. AbstractRichFunction
  4. RichFunction
  5. Function
  6. Serializable
  7. AnyRef
  8. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new RichWindowFunction()

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Abstract Value Members

  1. abstract def apply(key: KEY, window: W, input: Iterable[IN], out: Collector[OUT]): Unit

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    Evaluates the window and outputs none or several elements.

    Evaluates the window and outputs none or several elements.

    key

    The key for which this window is evaluated.

    window

    The window that is being evaluated.

    input

    The elements in the window being evaluated.

    out

    A collector for emitting elements.

    Definition Classes
    WindowFunction
    Exceptions thrown

    Exception The function may throw exceptions to fail the program and trigger recovery.

Concrete Value Members

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

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any

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

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    Definition Classes
    AnyRef → Any

  4. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  6. def close(): Unit

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    Definition Classes
    AbstractRichFunction → RichFunction
    Annotations
    @throws( classOf[java.lang.Exception] )

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

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    Definition Classes
    AnyRef

  8. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  9. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

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

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    Definition Classes
    AnyRef → Any

  11. def getIterationRuntimeContext(): IterationRuntimeContext

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    Definition Classes
    AbstractRichFunction → RichFunction

  12. def getRuntimeContext(): RuntimeContext

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    Definition Classes
    AbstractRichFunction → RichFunction

  13. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  14. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

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

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    Definition Classes
    AnyRef

  16. final def notify(): Unit

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    Definition Classes
    AnyRef

  17. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  18. def open(arg0: Configuration): Unit

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    Definition Classes
    AbstractRichFunction → RichFunction
    Annotations
    @throws( classOf[java.lang.Exception] )

  19. def setRuntimeContext(arg0: RuntimeContext): Unit

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    Definition Classes
    AbstractRichFunction → RichFunction

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

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    Definition Classes
    AnyRef

  21. def toString(): String

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    Definition Classes
    AnyRef → Any

  22. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from WindowFunction[IN, OUT, KEY, W]

Inherited from AbstractRichFunction

Inherited from RichFunction

Inherited from Function

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped