Scala example source code file (ScalaBeanInfo.scala)

This example Scala source code file (ScalaBeanInfo.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

array, bean, beans, methoddescriptor, propertydescriptor, scalabeaninfo

The ScalaBeanInfo.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2002-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */


package scala.beans

/** Provides some simple runtime processing necessary to create
 *  JavaBean descriptors for Scala entities. The compiler creates
 *  subclasses of this class automatically when the BeanInfo annotation is
 *  attached to a class.
 *
 *  @author Ross Judson (rjudson@managedobjects.com)
 */
abstract class ScalaBeanInfo(clazz: java.lang.Class[_],
                             props: Array[String],
                             methods: Array[String]) extends java.beans.SimpleBeanInfo {

  import java.beans._

  private val pd = new Array[PropertyDescriptor](props.length / 3)
  private val md =
    for (m <- clazz.getMethods if methods.exists(_ == m.getName))
      yield new MethodDescriptor(m)

  init()

  override def getPropertyDescriptors() = pd
  override def getMethodDescriptors() = md

  // override def getAdditionalBeanInfo() = Array(Introspector getBeanInfo clazz.getSuperclass)

  private def init() {
    var i = 0
    while (i < props.length) {
      pd(i/3) = new PropertyDescriptor(props(i), clazz, props(i+1), props(i+2))
      i = i + 3
    }
  }

}