scala.collection.generic.GenericSetTemplate

trait GenericSetTemplate[A, +CC[X] <: GenSet[X]] extends GenericTraversableTemplate[A, CC]

Abstract Value Members From scala.collection.generic.GenericTraversableTemplate ——————————————————————————–

abstract def companion: GenericCompanion[CC]

The factory companion object that builds instances of class Traversable. (or its Iterable superclass where class Traversable is not a Seq .)

  • Definition Classes
    • GenericTraversableTemplate

(defined at scala.collection.generic.GenericTraversableTemplate)

Concrete Value Members From scala.collection.generic.GenericTraversableTemplate ——————————————————————————–

abstract def head: A

Selects the first element of this collection.

  • returns
    • the first element of this collection.
  • Definition Classes
    • GenericTraversableTemplate
  • Exceptions thrown
    • NoSuchElementException if the collection is empty.

(defined at scala.collection.generic.GenericTraversableTemplate)

abstract def foreach[U](f: (A) ⇒ U): Unit

[use case]

  • f
    • the function that is applied for its side-effect to every element. The result of function f is discarded.
  • Definition Classes
    • GenericTraversableTemplate

(defined at scala.collection.generic.GenericTraversableTemplate)

def genericBuilder[B]: Builder[B, CC[B]]

The generic builder that builds instances of Traversable at arbitrary element types.

  • Definition Classes
    • GenericTraversableTemplate

(defined at scala.collection.generic.GenericTraversableTemplate)

def newBuilder: Builder[A, CC[A]]

The builder that builds instances of type Traversable[A]

  • Attributes
    • protected[this]
  • Definition Classes
    • GenericTraversableTemplate → HasNewBuilder

(defined at scala.collection.generic.GenericTraversableTemplate)

def transpose[B](implicit asTraversable: (A) ⇒ GenTraversableOnce[B]): CC[CC[B]]

Transposes this collection of traversable collections into a collection of collections.

The resulting collection’s type will be guided by the static type of collection. For example:

val xs = List(
           Set(1, 2, 3),
           Set(4, 5, 6)).transpose
// xs == List(
//         List(1, 4),
//         List(2, 5),
//         List(3, 6))

val ys = Vector(
           List(1, 2, 3),
           List(4, 5, 6)).transpose
// ys == Vector(
//         Vector(1, 4),
//         Vector(2, 5),
//         Vector(3, 6))
  • B
    • the type of the elements of each traversable collection.
  • asTraversable
    • an implicit conversion which asserts that the element type of this collection is a Traversable .
  • returns
    • a two-dimensional collection of collections which has as n th row the n th column of this collection.
  • Definition Classes
    • GenericTraversableTemplate
  • Annotations
    • @migration
  • Migration
    • (Changed in version 2.9.0) transpose throws an IllegalArgumentException if collections are not uniformly sized.
  • Exceptions thrown
    • IllegalArgumentException if all collections in this collection are not of the same size.

(defined at scala.collection.generic.GenericTraversableTemplate)

def unzip3[A1, A2, A3](implicit asTriple: (A) ⇒ (A1, A2, A3)): (CC[A1], CC[A2], CC[A3])

Converts this collection of triples into three collections of the first, second, and third element of each triple.

val xs = Traversable(
           (1, "one", '1'),
           (2, "two", '2'),
           (3, "three", '3')).unzip3
// xs == (Traversable(1, 2, 3),
//        Traversable(one, two, three),
//        Traversable(1, 2, 3))
  • A1
    • the type of the first member of the element triples
  • A2
    • the type of the second member of the element triples
  • A3
    • the type of the third member of the element triples
  • asTriple
    • an implicit conversion which asserts that the element type of this collection is a triple.
  • returns
    • a triple of collections, containing the first, second, respectively third member of each element triple of this collection.
  • Definition Classes
    • GenericTraversableTemplate

(defined at scala.collection.generic.GenericTraversableTemplate)

def unzip[A1, A2](implicit asPair: (A) ⇒ (A1, A2)): (CC[A1], CC[A2])

Converts this collection of pairs into two collections of the first and second half of each pair.

val xs = Traversable(
           (1, "one"),
           (2, "two"),
           (3, "three")).unzip
// xs == (Traversable(1, 2, 3),
//        Traversable(one, two, three))
  • A1
    • the type of the first half of the element pairs
  • A2
    • the type of the second half of the element pairs
  • asPair
    • an implicit conversion which asserts that the element type of this collection is a pair.
  • returns
    • a pair of collections, containing the first, respectively second half of each element pair of this collection.
  • Definition Classes
    • GenericTraversableTemplate

(defined at scala.collection.generic.GenericTraversableTemplate)

Concrete Value Members From Implicit scala.collection.parallel.CollectionsHaveToParArray ——————————————————————————–

def toParArray: ParArray[T]

  • Implicit information
    • This member is added by an implicit conversion from GenericSetTemplate [A, CC] to CollectionsHaveToParArray [GenericSetTemplate [A, CC], T] performed by method CollectionsHaveToParArray in scala.collection.parallel. This conversion will take place only if an implicit value of type ( GenericSetTemplate [A, CC]) ⇒ GenTraversableOnce [T] is in scope.
  • Definition Classes
    • CollectionsHaveToParArray (added by implicit convertion: scala.collection.parallel.CollectionsHaveToParArray)

Full Source:

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala
package collection
package generic
import scala.language.higherKinds
/**
 * @since 2.8
 */
trait GenericSetTemplate[A, +CC[X] <: GenSet[X]] extends GenericTraversableTemplate[A, CC] {
  def empty: CC[A] = companion.empty[A]
}