I just implemented AspectJ like described here: https://mcmap.net/q/1064135/-autowiring-in-spring-bean-component-created-with-new-keyword
This solution works fine, until I noticed that my @Autowired fields are null within @InitBinder. The fields are only null within the @InitBinder.
@Controller
public class EmployeeController {
@Autowired private GenericDaoImpl<Role, Integer> roleDao;
@Autowired private GenericDaoImpl<Employee, Integer> employeeDao;
@Autowired private EmployeeValidator employeeValidator;
@InitBinder
private void initBinder(WebDataBinder binder) {
// autowired fields are null
binder.setValidator(employeeValidator);
binder.registerCustomEditor(Set.class, "roles", new CustomCollectionEditor(Set.class) {
protected Object convertElement(Object element) {
if (element != null) {
Integer id = new Integer((String) element);
Role role = roleDao.findById(id);
return role;
}
return null;
}
});
}
@PreAuthorize("hasRole('MASTERDATA_VIEW')")
@RequestMapping(value = { "/employees" }, method = RequestMethod.GET)
public ModelAndView showEmployeeList() {
// dao not null
List<Employee> employees = employeeDao.findAll();
...
}
I cannot comprehend why they are sometimes null and somethimes not.(within the same class)