BlazeDS is not converting Scala classes to AMF - scala

Question

I'm new to Scala and BlazeDS. I am trying to write a very simple application where flex would call a method called getBook and the Scala service returns a Book object. There's no database involved. All I am doing is that I'm creating a new Instance of Book and returning it.
My problem is that I don't get a valid Book object on Flex as response. I'm including the code here.
Scala Book (scalaDemo.vo.Book.scala)
package scalaDemo.vo
case class Book (id:Long,name:String,authors:String)
Scala Service (scalaDemo.GreetingService.scala)
package scalaDemo
import scalaDemo.vo.Book
class GreetingService {
def sayHello = "Hello, World!"
def getBook (name:String):Book = new Book (10,name,"author")
}
Flex Side Book (vo.Book.as)
package vo
{
[RemoteClass(alias="scalaDemo.vo.Book")]
public class Book
{
public var id:Number;
public var name:String;
public var authors:String;
}
}
GreetingService.as
package services
{
import mx.rpc.AsyncResponder;
import mx.rpc.AsyncToken;
import mx.rpc.remoting.RemoteObject;
public class GreetingService
{
protected var ro : RemoteObject = new RemoteObject ("greetingService");
public function sayHello (responder:AsyncResponder) : void {
var token : AsyncToken = ro.sayHello();
token.addResponder(responder);
}
public function getBook (name:String,responder:AsyncResponder) : void {
var token : AsyncToken = ro.getBook(name);
token.addResponder(responder);
}
}
}
remoting-config.xml
<destination id="greetingService">
<properties>
<source>scalaDemo.GreetingService</source>
<scope>application</scope>
</properties>
</destination>
I have placed the scala classes under tomcat/webapps/blazeds/WEB-INF/classes (I am using blazeds turnkey server)
Please help me.

Answer 1

Ok. This is where I went wrong. I'm sorry BlazeDS. I blamed you for nothing.
This was how I defined my Book Class in Scala (the wrong way)
package scalaDemo.vo
case class Book (id:Long,name:String,authors:String)
For a Scala object to be serialized by BlazeDS we need to make sure of 2 things.
Each attribute of the class should be preceded by the Annotation #BeanProperty
Each attribute of the class should be declared as var
Here is the correct definition of scalaDemo.Book that I mentioned in my question.
package scalaDemo.vo
import scala.reflect.BeanProperty
case class Book (
#BeanProperty
var id:Long,
#BeanProperty
var name:String,
#BeanProperty
var authors:String)
Daniel C. Sorbal thank you for you interest. Now my next task would be to get Hibernate talking to Scala.