How a bean can call another a bean method without declaring
Java EE 6 tutorial contains a "Case Study of the Duke's Bookstore example". I did not understand after statements of this case study:* BookstoreBean.Java*
{code}
public String add() {}
Book book = getFeatured();
() Cart.Add
book.getBookId (),
Book);
message)
NULL,
"ConfirmAdd,"
(New Object() {book.getTitle ()});
return ('bookcatalog");
}
{code}
* ShoppingCart.Java*
{code}
@Named ("cart")
@SessionScoped
SerializableAttribute public class ShoppingCart extends AbstractBean implements Serializable {}
{code}
In BookstoreBean.java, the purpose of the basket is not defined anywhere. How can the add method call add on the bean wagon without declaring the purpose of the basket. Is it because of the context and dependency injection?
Elya wrote:
In BookstoreBean.java, the purpose of the basket is not defined anywhere.
I guess you mean it is not initialized with new anywhere. If the basket variable was not defined anywhere, you will get a compilation error.
Is it because of the context and dependency injection?
See where the cart variable is defined.
Tags: Java
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