Packages

sealed trait UDAF extends Serializable

The Scala UDAF (user-defined aggregate function) trait.

Since

1.19.0

Linear Supertypes
Serializable, AnyRef, Any
Known Subclasses
UDAF1, UDAF10, UDAF11, UDAF12, UDAF13, UDAF14, UDAF15, UDAF16, UDAF17, UDAF18, UDAF19, UDAF2, UDAF20, UDAF21, UDAF22, UDAF3, UDAF4, UDAF5, UDAF6, UDAF7, UDAF8, UDAF9
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  1. UDAF
  2. Serializable
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Visibility
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Abstract Value Members

  1. abstract def outputType(): DataType

    A DataType that describes the type of the value returned by the terminate() method.

    A DataType that describes the type of the value returned by the terminate() method.

    For example, if a UDAF returns an integer value, outputType() should return IntegerType: {{ override def outputType(): DataType = IntegerType }}

    returns

    A DataType describing the output type.

    Since

    1.19.0

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  8. final def getClass(): Class[_]
    Definition Classes
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    Annotations
    @native() @HotSpotIntrinsicCandidate()
  9. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  10. def inputSchema(): StructType

    A StructType that describes the input schema of the aggregate function.

    A StructType that describes the input schema of the aggregate function. By default, returns an empty StructType.

    returns

    A StructType describing the input schema.

    Since

    1.19.0

  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  15. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  16. def toString(): String
    Definition Classes
    AnyRef → Any
  17. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  18. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  19. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated

Inherited from Serializable

Inherited from AnyRef

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