Problem with a context node mapped

Question

hi all,      
i have a problem in a WD application, when i execute a certain RFC, the model node in the controller mapped to that RFC (model), does not fill itself with the data that the RFC suppose to bring as a result. it seems to get lost in some point (the data). i check and all seems to be fine. I bind the node, then i execute it and later i invalidate it. It's not a role problem i've checked already, and the RFC in the backend when i run it, shows me data. Anyone knows what could this be?...       
Regards, 
Mariana

Answer 1

Well my context structure its like this
+ Zbapi_XYZ
  + OutputY
    + ReturnY
    + Table_XYZ (custom structure)
      -attribute_1
      -attribute_n
  + Return_IN ( bapireturn structure)
      -attribute_1
      -attribute_n
  +Table_XYZ_IN (custom structure)
      -attribute_1
      -attribute_n
  - attribute1
This is a model node, all the attribute are model attribute and both Table_XYZ_IN and Table_XYZ are from the same type of structure.
The binding is implemented in WdDoInit Method as follow:
Zbapi_Sd_Consulta_Doc_Serial_Input bapiSdConsultaDocSerial =
               new Zbapi_Sd_Consulta_Doc_Serial_Input();
          wdContext.nodeZbapi_Sd_Consulta_Doc_Serial_Input().bind(
               bapiSdConsultaDocSerial);
and the execution of the RFC is in a custom method call
public void ejecutarSdConsultaDocSerial( java.lang.String serial )
inside it has the follow code:
String nombreFuncion = "ejecutarSdConsultaDocSerial: ";
          String mensaje = "";
          boolean error = false;
          wdContext.currentZbapi_Sd_Consulta_Doc_Serial_InputElement().setPsernr(
               serial);
          try {
               wdContext
                    .currentZbapi_Sd_Consulta_Doc_Serial_InputElement()
                    .modelObject()
                    .execute();
               //Invalidates the output context node
               //wdContext.nodeOutputSD().invalidate();
            wdContext.nodeZbapi_Sd_Consulta_Doc_Serial_Input().invalidate();   
               //En la variable "mensaje" se almacena todos los mensajes de error concatenados
               for (int i = 0; i < wdContext.nodeReturnSD().size(); i = i + 1) {
                    IReturnSDElement retorno =
                         wdContext.nodeReturnSD().getReturnSDElementAt(i);
                    if (retorno.getType().equals("E")) {
                         error = true;
                         mensaje = mensaje + " " + retorno.getMessage();
               if (error) {
                    wdContext
                         .currentEstatusBAPIElement()
                         .setEstatusSdConsultaDocSerial(
                         0);
                    wdContext.currentEstatusBAPIElement().setMensajeError(
                         nombreFuncion + mensaje);
               } else {
                    wdContext
                         .currentEstatusBAPIElement()
                         .setEstatusSdConsultaDocSerial(
                         1);
          } catch (Exception ex) {
               wdContext
                    .currentEstatusBAPIElement()
                    .setEstatusSdConsultaDocSerial(
                    0);
               wdContext.currentEstatusBAPIElement().setMensajeError(
                    nombreFuncion + ex.getMessage());