Publication

August 22, 2006

Auteur

Informations

Visité 38092 fois.
Page visitée 2467 fois.
Version : 1.0

Technologies :

Java

Catégories :

Java EE

Voir aussi

JBoss Seam Version 1.0 Released !

Résumé

Le framework applicatif JBoss Seam intègre facilite l’écriture d’applications contenant des workflows complexes, des flux de pages d’applications Web et des interactions utilisateurs.

Articles

1 2 3 4 5 6 7 8 9 10 11 12 13 14

JBoss Seam

4.2.Code de la démo

@Stateful
@Name("hotelBooking")
@Interceptor(SeamInterceptor.class)
@Conversational(ifNotBegunOutcome = "main")
@LoggedIn
public class HotelBookingAction implements HotelBooking, Serializable {
private static final Logger log = Logger.getLogger(HotelBooking.class);

@PersistenceContext(type = EXTENDED)
private EntityManager em;

private String searchString;

@DataModel
private List<Hotel> hotels;
@DataModelSelectionIndex
private int hotelIndex;

@Out(required = false)
private Hotel hotel;

@In(required = false)
@Out(required = false)
@Valid
private Booking booking;

@In
private User user;

@In
private transient FacesContext facesContext;

// Specify that this method starts a long running conversation
@Begin
public String find() {
hotel = null;
String searchPattern = searchString == null ? "%" : '%' + searchString.toLowerCase().replace('*', '%') + '%';
hotels = em.createQuery("from Hotel where lower(name) like :search or lower(city) like :search or lower(zip) like :search or lower(address) like :search")
.setParameter("search", searchPattern)
.setMaxResults(50)
.getResultList();

log.info(hotels.size() + " hotels found");

return "main";
}

public String getSearchString() {
return searchString;
}

public void setSearchString(String searchString) {
this.searchString = searchString;
}

public String selectHotel() {
if (hotels == null) return "main";
setHotel();
return "selected";
}

public String nextHotel() {
if (hotelIndex < hotels.size() - 1) {
++hotelIndex;
setHotel();
}
return null;
}

public String lastHotel() {
if (hotelIndex > 0) {
--hotelIndex;
setHotel();
}
return null;
}

private void setHotel() {
hotel = hotels.get(hotelIndex);
log.info(hotelIndex + "=>" + hotel);
}

public String bookHotel() {
if (hotel == null) return "main";
booking = new Booking(hotel, user);
booking.setCheckinDate(new Date());
booking.setCheckoutDate(new Date());
return "book";
}

@IfInvalid(outcome = REDISPLAY)
public String setBookingDetails() {
if (booking == null || hotel == null) return "main";
if (!booking.getCheckinDate().before(booking.getCheckoutDate())) {
log.info("invalid booking dates");
FacesMessage facesMessage = new FacesMessage("Check out date must be later than check in date");
facesContext.addMessage(null, facesMessage);
return null;
} else {
log.info("valid booking");
return "success";
}
}

@End
public String confirm() {
if (booking == null || hotel == null) return "main";
em.persist(booking);
log.info("booking confirmed");
return "confirmed";
}

@Destroy
@Remove
public void destroy() {
log.info("destroyed");
}

}