org.apache.spark.sql

UserDefinedFunction

case class UserDefinedFunction(f: AnyRef, dataType: DataType, inputTypes: Seq[DataType] = immutable.this.Nil) extends Product with Serializable

A user-defined function. To create one, use the udf functions in functions. As an example:

// Defined a UDF that returns true or false based on some numeric score.
val predict = udf((score: Double) => if (score > 0.5) true else false)

// Projects a column that adds a prediction column based on the score column.
df.select( predict(df("score")) )
Annotations
@Experimental()
Source
UserDefinedFunction.scala
Since

1.3.0

Linear Supertypes
Serializable, Serializable, Product, Equals, AnyRef, Any
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Inherited
  1. UserDefinedFunction
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
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Visibility
  1. Public
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Instance Constructors

  1. new UserDefinedFunction(f: AnyRef, dataType: DataType, inputTypes: Seq[DataType] = immutable.this.Nil)

    Attributes
    protected[org.apache.spark.sql]

Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  6. def apply(exprs: Column*): Column

  7. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  8. def clone(): AnyRef

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

  9. val dataType: DataType

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

    Definition Classes
    AnyRef

  11. val f: AnyRef

  12. def finalize(): Unit

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

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

    Definition Classes
    AnyRef → Any

  14. val inputTypes: Seq[DataType]

  15. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

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

    Definition Classes
    AnyRef

  17. final def notify(): Unit

    Definition Classes
    AnyRef

  18. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    AnyRef

  20. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

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