src/library/scala/ref/SoftReference.scala


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/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2006-2009, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

// $Id$

package scala.ref

/**
 *  @author Sean McDirmid
 */
class SoftReference[+T <: AnyRef](value : T, queue : ReferenceQueue[T]) extends ReferenceWrapper[T] {
  def this(value : T) = this(value, null);
  val underlying: java.lang.ref.SoftReference[_ <: T] =
    if (queue == null) new java.lang.ref.SoftReference[T](value);
    else new java.lang.ref.SoftReference[T](value, queue.underlying.asInstanceOf[java.lang.ref.ReferenceQueue[T]])
  if (queue != null)
    queue.register(this)
}