Scala example source code file (ParSetLike.scala)

This example Scala source code file (ParSetLike.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

genset, genset, gensetlike, pariterablelike, parset, parsetlike, parsetlike, repr, repr, sequential, sequential, set, setlike

The Scala ParSetLike.scala source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2011, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */


package scala.collection.parallel



import scala.collection.SetLike
import scala.collection.GenSetLike
import scala.collection.GenSet
import scala.collection.Set
import scala.collection.mutable.Builder








/** A template trait for parallel sets. This trait is mixed in with concrete
 *  parallel sets to override the representation type.
 *  
 *  $sideeffects
 *  
 *  @tparam T    the element type of the set
 *  
 *  @author Aleksandar Prokopec
 *  @since 2.9
 */
trait ParSetLike[T,
                 +Repr <: ParSetLike[T, Repr, Sequential] with ParSet[T],
                 +Sequential <: Set[T] with SetLike[T, Sequential]]
extends GenSetLike[T, Repr]
   with ParIterableLike[T, Repr, Sequential]
{ self =>
  
  def empty: Repr
  
  // note: should not override toSet (could be mutable)
  
  def union(that: GenSet[T]): Repr = sequentially {
    _ union that
  }
  
  def diff(that: GenSet[T]): Repr = sequentially {
    _ diff that
  }
  
}