scala.collection.generic.ParMapFactory

abstract class ParMapFactory[CC[X, Y] <: ParMap[X, Y] with ParMapLike[X, Y, CC[X, Y], _]] extends GenMapFactory[CC] with GenericParMapCompanion[CC]

A template class for companion objects of ParMap and subclasses thereof. This class extends TraversableFactory and provides a set of operations to create ParMap objects.

Type Members

class CanCombineFromMap[K, V] extends CanCombineFrom[CC[_, _], (K, V), CC[K, V]]

type Coll = CC[_, _]

The type constructor of the collection that can be built by this factory

  • Definition Classes
    • GenMapFactory

class MapCanBuildFrom[A, B] extends CanBuildFrom[Coll, (A, B), CC[A, B]]

The standard CanBuildFrom class for maps.

  • Definition Classes
    • GenMapFactory

type MapColl = CC[_, _]

Concrete Value Members From scala.collection.generic.GenMapFactory

abstract def empty[A, B]: CC[A, B]

An empty Map

  • Definition Classes
    • GenMapFactory

(defined at scala.collection.generic.GenMapFactory)

def apply[A, B](elems: (A, B)*): CC[A, B]

A collection of type Map that contains given key/value bindings.

  • A
    • the type of the keys
  • B
    • the type of the associated values
  • elems
    • the key/value pairs that make up the map
  • returns
    • a new map consisting key/value pairs given by elems .
  • Definition Classes
    • GenMapFactory

(defined at scala.collection.generic.GenMapFactory)

Abstract Value Members From scala.collection.generic.ParMapFactory

abstract def newCombiner[K, V]: Combiner[(K, V), CC[K, V]]

The default combiner for ParMap objects.

  • K
    • the type of the keys
  • V
    • the type of the associated values
  • Definition Classes
    • ParMapFactory → GenericParMapCompanion

(defined at scala.collection.generic.ParMapFactory)

Concrete Value Members From scala.collection.generic.ParMapFactory

def newBuilder[K, V]: Builder[(K, V), CC[K, V]]

The default builder for ParMap objects.

  • K
    • the type of the keys
  • V
    • the type of the associated values
  • Definition Classes
    • ParMapFactory → GenMapFactory

(defined at scala.collection.generic.ParMapFactory)

Instance Constructors From scala.collection.generic.ParMapFactory

new ParMapFactory()

(defined at scala.collection.generic.ParMapFactory)

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

def toParArray: ParArray[T]

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

Full Source:

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2010-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala
package collection
package generic

import scala.collection.parallel.ParMap
import scala.collection.parallel.ParMapLike
import scala.collection.parallel.Combiner
import scala.collection.mutable.Builder
import scala.language.higherKinds

/** A template class for companion objects of `ParMap` and subclasses thereof.
 *  This class extends `TraversableFactory` and provides a set of operations
 *  to create `$Coll` objects.
 *
 *  @define coll parallel map
 *  @define Coll `ParMap`
 *  @author Aleksandar Prokopec
 *  @since 2.8
 */
abstract class ParMapFactory[CC[X, Y] <: ParMap[X, Y] with ParMapLike[X, Y, CC[X, Y], _]]
extends GenMapFactory[CC]
   with GenericParMapCompanion[CC] {

  type MapColl = CC[_, _]

  /** The default builder for $Coll objects.
   *  @tparam K      the type of the keys
   *  @tparam V      the type of the associated values
   */
  override def newBuilder[K, V]: Builder[(K, V), CC[K, V]] = newCombiner[K, V]

  /** The default combiner for $Coll objects.
   *  @tparam K     the type of the keys
   *  @tparam V     the type of the associated values
   */
  def newCombiner[K, V]: Combiner[(K, V), CC[K, V]]

  class CanCombineFromMap[K, V] extends CanCombineFrom[CC[_, _], (K, V), CC[K, V]] {
    def apply(from: MapColl) = from.genericMapCombiner[K, V].asInstanceOf[Combiner[(K, V), CC[K, V]]]
    def apply() = newCombiner[K, V]
  }

}