Item 13: How to Adopt a Fluent API Style in Entities
Consider the Author and Book entities, which are involved in a bidirectional lazy @OneToMany association, as shown in Figure 2-1.
Figure 2-1
The @OneToMany table relationship
Usually, you can create an Author with Books as follows (e.g., one author with two books):
Author author = new Author();
author.setName("Joana Nimar");
author.setAge(34);
author.setGenre("History");
Book book1 = new Book();
book1.setTitle("A History of Ancient Prague");
book1.setIsbn("001-JN"); ...
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