Scala example source code file (t1143.scala)

This example Scala source code file (t1143.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

a, anyref, array, array, component, form, printer, runtimeexception, serialversionuid, serialversionuid, t, t, varmodel, varmodel

The Scala t1143.scala source code

object Serialize {
  @throws(classOf[java.io.IOException])
  def write[A](o: A): Array[Byte] = {
    val ba = new java.io.ByteArrayOutputStream(512)
    val out = new java.io.ObjectOutputStream(ba)
    out.writeObject(o)
    out.close()
    ba.toByteArray()
  }
  @throws(classOf[java.io.IOException])
  @throws(classOf[ClassNotFoundException])
  def read[A](buffer: Array[Byte]): A = {
    val in =
      new java.io.ObjectInputStream(new java.io.ByteArrayInputStream(buffer))
    in.readObject().asInstanceOf[A]
  }
}

@serializable
@SerialVersionUID(1L)
class VarModel[T](getter: => T, setter: T => Unit) {
  Serialize.write(getter)
  Serialize.write(setter)

  def this(getter: => T) = this(getter, null)

  def getObject: AnyRef = getter.asInstanceOf[AnyRef]

  def setObject(v: AnyRef) = {
    if (setter == null)
      throw new RuntimeException("Tried to set readonly model!")
    setter(v.asInstanceOf[T])
  }

  def detach = ()
}

@serializable
@SerialVersionUID(1L)
class Printer(p: VarModel[String]) {
  def print = println(p.getObject)
}

@serializable
@SerialVersionUID(1L)
class Component {
}

class Form extends Component {
}

@serializable
@SerialVersionUID(1L)
class Main {
  var pass = "pass"
  def main(args: Array[String]) {
    val f = new Form {
      val p = new Printer(new VarModel(pass, s => pass = s))
    }
    ()
  }
}

object Test {
  def main(args: Array[String]) {
    (new Main).main(Array[String]())
  }
}