Spring Framework 3 and session attributes

Question

I have form object that I set to request in GET request handler in my Spring controller. First time user enters to page, a new form object should be made and set to request.

Answer 1

if there is no defined session object so I think it's gonna be like this:

@SessionAttributes({"form"})
    @Controller
    public class MyController {
   @RequestMapping(value="form", method=RequestMethod.GET)
   public ModelAndView viewForm() {
       ModelAndView mav = new ModelAndView("form");      
       if(form == null) form = new Form();
       mav.addObject("form", form);
       return mav;
   }

   @RequestMapping(value="form", method=RequestMethod.POST)
   @Transactional(readOnly = true)
   public ModelAndView saveForm(@ModelAttribute("form") Form form) {
      // ..etc etc
   }
}