JSF :: Request Scoped Action Beans

If I have the next request scoped JSF bean for example:

public class UserBean {
private String name;
private String surname;
public String saveUser(){
//service is called to save a user
}
public String updateUser(){
//service is called to update a user

[Code] ....

1.In struts for example the Action classes are singletons and I think is the way it has to be because they contain business logic and is the same logic for every user but in JSF because of you mix properties from a form and methods with business logic, these beans have to be request scoped like the above one but is very wierd that a bean which contains business logic(saveUser()....) be request scoped;I dont see it effective, is like creating a new servlet each time you want to save a user but I think is the way JSF works, right?

2 To avoid the mixing of form properties in a bean with business logic, some people say to have the form beans request scoped and actions beans session scoped.

- Is this right?
- How then can you get the request form bean in the action bean?
- The scopes in JSF are request, session and view so you cannot create singleton action beans, the best you can get is a session action bean, right?. Once again I dont see the point of creating action beans with session scoped,they should be application scoped if it existed