Scala example source code file (Message.scala)

This example Scala source code file (Message.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

a, include, location, message, remove, reset, script, scripting, string, update

The Message.scala Scala example source code

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

package scala
package collection
package script

import mutable.ArrayBuffer

/** Class `Message` represents messages that are issued by observable
 *  collection classes whenever a data structure is changed. Class `Message`
 *  has several subclasses for the various kinds of events: `Update`
 *  `Remove`, `Include`, `Reset`, and `Script`.
 *
 *  @author  Matthias Zenger
 *  @version 1.0, 08/07/2003
 *  @since   2.8
 */
@deprecated("Scripting is deprecated.", "2.11.0")
trait Message[+A]

/** This observable update refers to inclusion operations that add new elements
 *  to collection classes.
 *
 *  @author  Matthias Zenger
 *  @version 1.0, 08/07/2003
 */
@deprecated("Scripting is deprecated.", "2.11.0")
case class Include[+A](location: Location, elem: A) extends Message[A] {
  def this(elem: A) = this(NoLo, elem)
}

/** This observable update refers to destructive modification operations
 *  of elements from collection classes.
 *
 *  @author  Matthias Zenger
 *  @version 1.0, 08/07/2003
 */
@deprecated("Scripting is deprecated.", "2.11.0")
case class Update[+A](location: Location, elem: A) extends Message[A] {
  def this(elem: A) = this(NoLo, elem)
}

/** This observable update refers to removal operations of elements
 *  from collection classes.
 *
 *  @author  Matthias Zenger
 *  @version 1.0, 08/07/2003
 */
@deprecated("Scripting is deprecated.", "2.11.0")
case class Remove[+A](location: Location, elem: A) extends Message[A] {
  def this(elem: A) = this(NoLo, elem)
}

/** This command refers to reset operations.
 *
 *  @author  Matthias Zenger
 *  @version 1.0, 08/07/2003
 */
@deprecated("Scripting is deprecated.", "2.11.0")
case class Reset[+A]() extends Message[A]

/** Objects of this class represent compound messages consisting
 *  of a sequence of other messages.
 *
 *  @author  Matthias Zenger
 *  @version 1.0, 10/05/2004
 */
@deprecated("Scripting is deprecated.", "2.11.0")
class Script[A] extends ArrayBuffer[Message[A]] with Message[A] {

  override def toString(): String = {
    var res = "Script("
    val it = this.iterator
    var i = 1
    while (it.hasNext) {
      if (i > 1)
        res = res + ", "
      res = res + "[" + i + "] " + it.next
      i += 1
    }
    res + ")"
  }
}