Packages

trait Ranking[A] extends QueryExpression[A]

Description of an ranking function. It's a return type of ranking function used inside a window function.

For instance, person.rowNumber is an Ranking.Of[Person, Int].

Example:

select[Person]
  .window(_.rowNumber)
  .over(_.partitionBy(_.country))
A

input type of the ranking function

Self Type
Ranking[A]
Linear Supertypes
QueryExpression[A], Serializable, AnyRef, Any
Known Subclasses
Lag, Mapped, Rank, RowNumber
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Ranking
  2. QueryExpression
  3. Serializable
  4. AnyRef
  5. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Type Members

  1. abstract type Out

    Output value of this expression.

    Output value of this expression.

    Definition Classes
    QueryExpression

Abstract Value Members

  1. abstract def apply(order: Ordering[A], values: Iterable[A]): Iterable[(A, Out)]

    Applies this ranking function to a set of values.

    Applies this ranking function to a set of values.

    order

    ordering for the input type

    values

    values to aggregate

    returns

    the ranking function result

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
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  9. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. def map[B](f: (Out) => B): Of[A, B]

    Transforms this ranking function output type.

    Transforms this ranking function output type.

    B

    the new output type

    f

    transformation function

    returns

    this ranking function with transformed output

  13. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  16. final def processWindow(order: Ordering[A], values: Iterable[A])(implicit flatten: TupleFlatten[(A, Out)]): Iterable[utils.TupleFlatten.Out]
    Definition Classes
    Ranking → QueryExpression
  17. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  18. def toString(): String
    Definition Classes
    AnyRef → Any
  19. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  20. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  21. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from QueryExpression[A]

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped