Mapping Number to Java

[Felipe]

Hello, I hava a class in actionscript 2:

class MDSVVista {
    private var ident:Number;
    private var nombre:String;
    private var descripcion:String;
   
    public function MDSVVista (id:Number,nom:String,desc:String) {
        this.ident = id;
        this.nombre = nom;
        this.descripcion = desc;
        trace("Vista Constructor: "+this.nombre+" ("+this.ident+"-"+this.descripcion+")");
    }
    public function getIdent(Void) : Number {
        return this.ident;
    }
    public function setIdent(id:Number) : Void {
        this.ident = ident;
    }
    public function getNombre(Void) : String {
        return this.nombre;
    }
    public function setNombre(nom:String) : Void {
        this.nombre = nom;
    }
    public function getDescripcion(Void) : String {
        return this.descripcion;
    }
    public function setDescripcion(desc:String) : Void {
        this.descripcion = desc;
    }
   
}

and a fla document:

import MDSVVista;

// --- Incluimos las clases para la conexin remota
import mx.remoting.NetServices;
import mx.debug.NetDebug;

// --- Definimos la conexin remota
// Connect to the gateway and create a service object
if (connected == null) {
  connected = true;
  NetServices.setDefaultGatewayUrl("http://localhost:1331/macromedia/gateway");
  var my_conn = NetServices.createGatewayConnection();
  var myService = my_conn.getService("flashgateway.samples.MDSVGestorVista", this);
}

// --- Definimos el mapeo de clases (clase java / clase Flash)
Object.registerClass("flashgateway.samples.MDSVVista", MDSVVista);

// --- Creamos un usuario Flash
var id:Number = 13;
var nombre:String = "Vista 13";
var desc:String = "Descripcion 13";
trace("Antes de crear la vista");
var nuevaVista:MDSVVista = new MDSVVista(id,nombre,desc);
trace("Despues de crear la vista");
trace("Id de la vista: "+nuevaVista.getIdent());

myService.mandarVista(nuevaVista);
myService.recibirVista();

function mandarVista_Result(result)
{
        trace("Vista mandada (correcto): " + result);
       
        trace(" ------------------ ");
        trace(" - recibirVista - ");
       
        // --- llamamos al metodo recibirUsuario de la clase Java definida en el servicio
        //myService.recibirVista();
}

// --- Definimos la funcion resultado de recibirUsuario
function recibirVista_Result(result)
{
       
        trace("Vista Recibida (correcto): " + result);
        trace("es instanceof MDSVVista? -> " + (result instanceof MDSVVista))
}

// --- Definimos una funcin global para el caso de que ocurra un error
_global.System.onStatus = function(status)
{
        trace(" - onStatus:");
        trace(" code:        " + status.code);
        trace(" level:       " + status.level);
        trace(" type:        " + status.type);
        trace(" rootcause:   " + status.rootcause);
        trace(" description: " + status.description);
        trace(" details:     " + status.details);
}

and tha java class to serialize is:

public class MDSVVista implements Serializable{
   
    private long ident;
    private String nombre;
    private String descripcion;
   
    public MDSVVista ()
    {
    }
    public MDSVVista (long id,String nom,String desc) {
        this.ident = id;
        this.nombre = nom;
        this.descripcion = desc;
        System.out.println("Vista: "+this.nombre+" ("+this.ident+"-"+this.descripcion+")");
    }
    public long getIdent()  {
        return this.ident;
    }
    public void setIdent(long id) {
        this.ident = ident;
    }
    public String getNombre() {
        return this.nombre;
    }
    public void setNombre(String nom) {
        this.nombre = nom;
    }
    public String getDescripcion() {
        return this.descripcion;
    }
    public void setDescripcion(String desc) {
        this.descripcion = desc;
    }
   
}

and testing class is:

package flashgateway.samples;

//import java.util.logging.Logger;
import com.carbonfive.flash.ASTranslator;
import flashgateway.io.ASObject;
import java.sql.*;

public class MDSVGestorVista
{
        /*private static final Logger log =
        Logger.getLogger(MDSVGestorVista.class.getName());*/

        private String myDriverString = "oracle.jdbc.driver.OracleDriver";
        private String myConnectionString = "jdbc:oracle:thin:@10.95.29.195:1521:FFSSVA";
        private String myUsername = "opesndsv";
        private String myPassword = "opesndsv";
        private Connection conn = null;
       
        private MDSVVista vista;
       
        public void mandarVista(ASObject usuarioAS)
        {
                ASTranslator t = new ASTranslator();
                vista = (MDSVVista)t.fromActionScript(usuarioAS);
                System.out.println("VISTA RECOGIDA: " + vista.getNombre()+"( "+vista.getIdent()+" ) - "+vista.getDescripcion());
        }
       
        public ASObject recibirVista() throws Exception
        {
            String errors = "";
            //CachedRowSet rowset = new CachedRowSet();
            long id;
            String nom, desc;
           
            try
            {
       
                Class.forName(myDriverString);
                  conn = DriverManager.getConnection(
                  myConnectionString, myUsername, myPassword);
            } catch (ClassNotFoundException e) {
                  errors = "Incorrect JDBC Driver\n";
            }
              if(errors == "") {
                try
                {
                    Statement s = conn.createStatement();
                      String sql = "SELECT id_vista,nombre,descripcion FROM NDSV_VISTAS_WEB "+
                                    "WHERE id_vista=1";
                                   
                    System.out.println("Sentencia SQL= "+sql);
                    ResultSet rs = s.executeQuery(sql);
                   
                    while ( rs.next() )
                    {
                        id =  rs.getLong(1);
                        nom = rs.getString(2);
                        desc = rs.getString(3);
                        vista = new MDSVVista(id,nom,desc);
                        //System.out.println("Datos consulta SQL: "+nom+"( "+id+" ) - "+desc);
                        System.out.println("VISTA ENVIADA: "+vista.getNombre()+"( "+vista.getIdent()+" ) - "+vista.getDescripcion());
                    }
                   
                   
                    rs.close();
                    s.close();
                        
                } catch(SQLException e) { //catch any SQL errors
                        errors += e.toString() ;
                } finally {
                    if(conn != null) {
                        conn.close();
                    }
                                   
                }
            }
            if (errors!="") {
                  throw new Exception (errors) ;
            }                                   
                       
            ASTranslator t = new ASTranslator();
            return (ASObject)t.toActionScript(vista);
        }
}

Sent java class MDSVVista is well retrieved in actionscript but sent actionscript class MDSVVista doesn't. In java side String attributes are ok (traces show right values) but Number attributes shows 0 value when must be 13. What maybe the problem?
I have tested changing java numeric attribute to Number, Double,Long, double and the same problem appears. Besides if I do id:Number = new Number(13) the connection crashes and an error is returned.

Help me, please. This is driving me crazy.
Thanks in advance.

[Alon Salant]

Can you tell me the keys/values of the entries in the ASObject passed to mandarVista()?

If the ident entry has a value of 13, there is an issue with ASTranslator. If it has a value of 0 or null it is an issue with the Remoting gateway.

Which Remoting implementation are you using? Macromedia? OpenAMF?

-alon

[Felipe]

Thanks for replying. Now, it's solved. There was an error in:
public function setIdent(id:Number) : Void {
this.ident = ident; // must be id
}

Besides, I have a constructor with parameters (not supported in javabeans, I think). Using an unique constructor without parameter the thing goes right. My doubt now is: How can I serialize a class (not javabean) with a constructor passing parameters?  Is it possible with ASTranslator or it only support javabean style? Without using ASTranslator is possible?

Thanks again.
Now, I'm working with Macromedia Flash Remoting.

[KhronnuZ]

Hi,

I got problem mapping Number to Java, my ASObject was a value but the Translated class not.

my code:

the custom java class named Hora2

public class Hora2 {
    public Number hora;
    public String minuto;
}

The service class named Servico
public class Servidor {
    public int registrarBo(ASObject ASbo) {
        ASTranslator t = new ASTranslator();
        Hora2 h = (Hora2)t.fromActionScript(ASbo);
        System.err.println(ASbo.get("hora")); // works
        System.err.println(h.hora); // prints null (when Number) or 0.0 (when boolean) or 0 (when int)
        return 3;
    }
}

My custom flash class named Hora2
class Hora2 { 
    public var hora:Number;
    public var minuto:String;
    public function Hora2(h:Number, m:String){
    Object.registerClass("Hora2",Hora2)
        this.hora = h;
        this.minuto = m;
     }
}

and when a call the service called myservice
...
    var h = new Hora2(12,"23");
    var pc:PendingCall = Servio.registrarBo(h);
  ...

[Alon Salant]

You need to take another read of the documentation: http://carbonfive.sourceforge.net/astranslator/api/com/carbonfive/flash/package-summary.html#documentation

ASTranslator works with JavaBean-style properties so you need get/set accessors for your object properties. Also, you Java class Hora2 needs to implement java.io.Serializable.

Alon