What is the design of the best class: calling pages by calling a class and a BLL page or calling BLL class?

Question

If I have an object, say a custom class, say the First and Last Name properties, then the best way to populate it:

• PAGE instantiates the class, and PAGE invokes the business layer for the popualte class. (In this case, the class is essentially a data container).

or

2. The class itself not only has properties, but also has a method for invoking a business layer, fills itself, and returns itself to the page.

Answer 1

I would go for the first. I think it is cleaner, and so your custom class can stand on its own, even if the business layer changes.

, MVC.

Answer 2

, . - , ? ?

, , DAO/DTO. № 1 (DTO), . № 2 (DAO) - , , .

, , - №3, -, -, . , , ( , -).

, , , .

Answer 3

. .

Answer 4

factory abstract factory, - , . :

- ​​ , , . , . , , firstname lastname , , save().

-, , . -, , . , - / .

Answer 5

-, reloadData(). -, - .

Answer 6

, . , . .

Answer 7

How about if the object has a .Save () method that calls the Business.Save () method?

Perhaps this stirs him too much.