Beginning Java EE 7 by Antonio Goncalves

Author:Antonio Goncalves
Language: eng
Format: epub, pdf
ISBN: 9781430246268
Publisher: Apress

Listing 8-9. A Bean Using Programmatic Security

@Stateless

public class ItemEJB {

@PersistenceContext(unitName = "chapter08PU")

private EntityManager em;

@Resource

private SessionContext ctx ;

public void deleteBook(Book book) {

if (!ctx. isCallerInRole ("admin"))

throw new SecurityException("Only admins are allowed");

em.remove(em.merge(book));

}

public Book createBook(Book book) {

if (ctx. isCallerInRole ("employee") && !ctx. isCallerInRole ("admin")) {

book.setCreatedBy("employee only");

} else if (ctx. getCallerPrincipal ().getName().equals("paul")) {

book.setCreatedBy("special user");

}

em.persist(book);

return book;

}

}

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