I just map a request like /users/:groupId?orderBy=name to A java object like "int groupId", and "String name" and it puts them automatically by converting, and

I just map a request like /users/:groupId?orderBy=name to A java object like "int groupId", and "String name" and it puts them automatically by converting, and if you wish you add some checks, notnull, range etc. and It replies bad request to client. Therefore, I do not do this conversion and checking each time.