kotlin-spark-api_3.0.2_2.12/org.jetbrains.kotlinx.spark.api/NamedUserDefinedFunction

NamedUserDefinedFunction

interface NamedUserDefinedFunction<Return, This> : UserDefinedFunction<Return, This>

Typed and named wrapper around SparkUserDefinedFunction with defined encoder.

Parameters

Return

the return type of the udf

This

a self reference to the named version of the SparkUserDefinedFunction implementing class. Unfortunately needed to allow functions to treat any NamedTypedUserDefinedFunction as a normal TypedUserDefinedFunction.

Functions

getValue

abstract operator fun getValue(thisRef: Any?, property: KProperty<*>): This

Converts this UserDefinedFunction to a NamedUserDefinedFunction.

withName

abstract fun withName(name: String): This

Converts this UserDefinedFunction to a NamedUserDefinedFunction.

Properties

deterministic

open val deterministic: Boolean

Returns true iff the UDF is deterministic, i.e. the UDF produces the same output given the same input.

encoder

abstract val encoder: <Error class: unknown class><Return>

name

abstract val name: String

nullable

open val nullable: Boolean

Returns true when the UDF can return a nullable value.

udf

abstract val udf: <Error class: unknown class>

Inheritors

NamedUserDefinedFunctionVararg

NamedUserDefinedFunction0

NamedUserDefinedFunction1

NamedUserDefinedFunction2

NamedUserDefinedFunction3

NamedUserDefinedFunction4

NamedUserDefinedFunction5

NamedUserDefinedFunction6

NamedUserDefinedFunction7

NamedUserDefinedFunction8

NamedUserDefinedFunction9

NamedUserDefinedFunction10

NamedUserDefinedFunction11

NamedUserDefinedFunction12

NamedUserDefinedFunction13

NamedUserDefinedFunction14

NamedUserDefinedFunction15

NamedUserDefinedFunction16

NamedUserDefinedFunction17

NamedUserDefinedFunction18

NamedUserDefinedFunction19

NamedUserDefinedFunction20

NamedUserDefinedFunction21

NamedUserDefinedFunction22