Adding errors in controller

[Brian Nice]

In the SimpleFormController, the onSubmit takes a BindException as a parameter. How do I add a new error to that object? For example, I have a service that validates a username and password against a value, and if they do not match I want to display an error back to the user. Is the following the correct way to do this or is there a more elegant way to do this?

protected ModelAndView onSubmit(Object command, BindException errors) throws Exception {
 
Player player = (Player)command;
if (loginService.login(player)) {
return new ModelAndView(getSuccessView(), "player", player);
}
else {
//errors.addError(new ObjectError(.. various parameters here ...));
return new ModelAndView(getFormView(), "player", player);
}

Thanks for the help
Brian

[Brian Nice]

I didn't realize until this morning that BindException was actually a subclass of Errors so I can use the same way of adding errors as I am doing in my Validator.
Brian