code: private boolean convertFieldValues(final AjaxRequestTarget _target)
          throws EFapsException
      {
          AjaxSubmitCloseButton.LOG.trace("entering convertFieldValues");
          final EFapsRequestParametersAdapter parameters = (EFapsRequestParametersAdapter) getRequest()
                          .getRequestParameters();
          final FormContainer frmContainer = (FormContainer) getForm();
          for (final IValueConverter converter : frmContainer.getValueConverters()) {
              converter.convertValue(parameters);
          }
          return true;
      }
docs: Method used to convert the values from the ui in values for
  eFaps.
  @param _target AjaxRequestTarget
  @return true if converted successfully, else false
  @throws EFapsException on error