Applying It All: The Mega App - JSF and HTML5 - page 326

Book JPA entity class has the following attributes:

id : Marked as a primary key for the entity using @Id annotation. It is an auto-generated
attribute.

•

ISBN : Validated to be not null. ISBN is validated to be between 10 and 20 characters. •

title : Validated to be not null. Book title is validated be between 5 and 128 characters. •

author : Validated to be not null. Book author is validated to be between 3 and 128 characters.

•

publisher : Validated to be not null. Book publisher is validated to be between 3 and 64
characters.

•

lang : Represents the topic language and it is validated to be not null. Book language is
validated to be between 3 and 64 characters.

•

content : Represents the topic content and it is marked as a Lob (Large Object). •

bookRequestList : Represents the associated requests of the topic; its cascade type is set
to “All”, which means that all of the operations (merge, persist, remove, refresh) will
be cascaded.

•

■ it is important to note that all of the following Jpa entities will be used as CDi beans in the application Facelets
pages: for more information, check the “Composing page templates” section.

Note

Now, let's move to the second EJB Manager ( MegaUserManager ) EJB. Listing 13-7 shows the EJB Local interface of
MegaUserManager EJB.

Listing 13-7. MegaUserManager EJB Local Interface
package com.jsfprohtml5.megaapp.service;

import com.jsfprohtml5.megaapp.model.MegaUser;
import com.jsfprohtml5.megaapp.service.exception.UserAlreadyExists;
import com.jsfprohtml5.megaapp.service.exception.UserNotFound;
import java.util.List;
import javax.ejb.Local;

@Local
public interface MegaUserManagerLocal {
public MegaUser getMegaUser(String userID) throws UserNotFound;
public List<MegaUser> retrieveMegaUsers();
public MegaUser registerMegaUser(MegaUser user) throws UserAlreadyExists;
public void removeMegaUser(String userID) throws UserNotFound;
}

Listing 13-8 shows the MegaUserManager EJB class implementation.