Scala example source code file (bug2175.scala)

This example Scala source code file (bug2175.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

array, list, list, nil, nil, property, t, t, test, unit, unit

The Scala bug2175.scala source code

case class Property[T](private var t: T) {
 var beforeChanges: List[(T, T) => Unit] = Nil
 var afterChanges: List[T => Unit] = Nil
 def apply = t
 def update(t2: T) = {
  beforeChanges foreach (_(t, t2))
  t = t2
  afterChanges foreach (_(t2))
 }
}

object Test
{
  def main(args: Array[String]): Unit = {
    val x = Property(10)
    x update 25
    assert(x.apply == 25)
  }
}