Packages

sealed trait UdfAdaptor[T] extends Serializable

Tells Feathr how to use UDFs that are defined in "external" non-Feathr UDF classes (i.e. that don't extend from Feathr's AnchorExtractor or other UDF traits). An adaptor must match the external UDF class to a specific kind of Feathr UDF – see child traits below for the various options.

All "external" UDF classes are required to have a public default zero-arg constructor.

T

the internal Feathr UDF class whose behavior the external UDF can be translated to

Linear Supertypes
Serializable, Serializable, AnyRef, Any
Known Subclasses
AnchorExtractorAdaptor, FeatureDerivationFunctionAdaptor, SimpleAnchorExtractorSparkAdaptor, SourceKeyExtractorAdaptor
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Abstract Value Members

  1. abstract def adaptUdf(externalUdf: AnyRef): T

    Returns an instance of a Feathr UDF, that follows the behavior of some external UDF instance, e.g.

    Returns an instance of a Feathr UDF, that follows the behavior of some external UDF instance, e.g. via delegation.

    externalUdf

    instance of the "external" UDF

    returns

    the Feathr UDF

  2. abstract def canAdapt(clazz: Class[_]): Boolean

    Indicates whether this adaptor can be applied to an object of the provided class.

    Indicates whether this adaptor can be applied to an object of the provided class.

    Implementations should usually look like 

    classOf[UdfTraitThatIsNotPartOfFeathr].isAssignableFrom(clazz)

    clazz

    some external UDF type

    returns

    true if this adaptor can "adapt" the given class type; false otherwise

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
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  4. final def asInstanceOf[T0]: T0
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    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
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    Annotations
    @throws( ... ) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
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    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
    Definition Classes
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    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
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  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
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    @native()
  14. final def notifyAll(): Unit
    Definition Classes
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    @native()
  15. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  16. def toString(): String
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  17. final def wait(): Unit
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    @throws( ... )
  18. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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    @throws( ... )
  19. final def wait(arg0: Long): Unit
    Definition Classes
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