kotlin-spark-api_3.0.2_2.12/org.jetbrains.kotlinx.spark.api/UDF4

UDF4

fun interface UDF4<T1, T2, T3, T4, R>

Kotlin wrapper around UDF interface to ensure nullability in types.

Functions

abstract fun call( t1: T1, t2: T2, t3: T3, t4: T4): R