Producer methods and fields

A producer method or field is a method or field of a bean class annotated as @Produces. It generates beans after the deployment time of the application hosting the CDI engine.

Here's a sample producer method:

@Published
@Produces
public List<Book> getPublishedBooks() {
    Book[] books = new Book[] { new Book("Mastering Java EE Development with WildFly 10", "Luca Stancapiano", PUBLISHED),
    new Book("Gatein Cookbook", "Luca Stancapiano", PUBLISHED) };
    return asList(books);
}

We have a @Published qualifier used to identify the list of books and the @Produces annotation. Thanks to this last annotation, we can inject a list of books from a bean and it will be automatically populated with the books:

@Inject
@Published
private List<Book> publishedBooks;