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
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. UserDefinedFunction
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

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

Ungrouped