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Scala example source code file (Combine.scala)

This example Scala source code file (Combine.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

bench, benchcompanion, combine, combine, hashmap, hashtrie, hashtrie, int, int, intinit, map, string, string, unsupportedoperationexception

The Scala Combine.scala source code

package scala.collection.parallel.benchmarks
package hashtries




import collection.immutable.{HashMap => HashTrie}
import collection.mutable.HashMap






class Combine(val size: Int, val parallelism: Int, val runWhat: String) extends Bench with IntInit {
  var thattrie = new HashTrie[Int, Int]
  for (i <- size until 2 * size) thattrie += ((i, i))
  val thatmap = new HashMap[Int, Int]
  for (i <- size until 2 * size) thatmap += ((i, i))
  
  def runpar = throw new UnsupportedOperationException
  def runseq = runhashtrie
  def runhashtrie = {
    hashtrie merge thattrie
    // println
    // println("both tries:         " + HashTrie.bothtries)
    // println("one trie, one item: " + HashTrie.onetrie)
    // println("both single:        " + HashTrie.bothsingle)
    // System exit 1
  }
  def rundestructive = {
    hashtrie merge thattrie
  }
  def runappendtrie = hashtrie ++ thattrie
  def runhashmap = hashmap ++ thatmap
  def companion = Combine
  def comparisonMap = Map("hashtrie" -> runhashtrie _, "hashmap" -> runhashmap _, "destruct" -> rundestructive _, "appendtrie" -> runappendtrie _)
  override def reset = runWhat match {
    case "appendtrie" => initHashTrie
    case "destruct" => initHashTrie
    case _ => super.reset
  }
}


object Combine extends BenchCompanion {
  def collectionName = "HashTrie"
  def benchName = "combine";
  def apply(sz: Int, p: Int, what: String) = new Combine(sz, p, what)
  override def defaultSize = 5000
}















Other Scala examples (source code examples)

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