//$Id: BookingListAction.java,v 1.14 2006/06/09 14:50:11 gavin Exp $

package org.jboss.seam.example.booking;



import static javax.ejb.TransactionAttributeType.REQUIRES_NEW;

import static org.jboss.seam.ScopeType.SESSION;



import java.io.Serializable;

import java.util.List;



import javax.ejb.Remove;

import javax.ejb.Stateful;

import javax.ejb.TransactionAttribute;

import javax.persistence.EntityManager;

import javax.persistence.PersistenceContext;



import org.jboss.seam.annotations.Logger;

import org.jboss.seam.annotations.Destroy;

import org.jboss.seam.annotations.Factory;

import org.jboss.seam.annotations.In;

import org.jboss.seam.annotations.Name;

import org.jboss.seam.annotations.Observer;

import org.jboss.seam.annotations.Out;

import org.jboss.seam.annotations.Scope;

import org.jboss.seam.annotations.datamodel.DataModel;

import org.jboss.seam.annotations.datamodel.DataModelSelection;

import org.jboss.seam.core.FacesMessages;

import org.jboss.seam.log.Log;



@Stateful

@Scope(SESSION)

@Name("bookingList")

@LoggedIn

@TransactionAttribute(REQUIRES_NEW)

public class BookingListAction implements BookingList, Serializable

{

   

   @PersistenceContext

   private EntityManager em;

   

   @In

   private User user;

   

   @DataModel

   private List<Booking> bookings;

   @DataModelSelection 

   @Out(required=false)

   private Booking booking;

   

   @Logger private Log log;

   

   @Factory

   @Observer("bookingConfirmed")

   public void getBookings()

   {

      bookings = em.createQuery("from Booking b where b.user.username = :username order by b.checkinDate")

            .setParameter("username", user.getUsername())

            .getResultList();

   }

   

   public String cancel()

   {

      log.info("Cancel booking: #0 for #{user.username}", booking.getId());

      Booking cancelled = em.find(Booking.class, booking.getId());

      if (cancelled!=null) em.remove( cancelled );

      getBookings();

      FacesMessages.instance().add("Booking cancelled for confirmation number #{booking.id}");       //  <-
 FacesMessages from MyFaces 
      return "main";

   }

   

   @Destroy @Remove

   public void destroy() {}

   

}