ejava.examples.txhotel.ejb

Class HotelRegistrationEJB

java.lang.Object

ejava.examples.txhotel.ejb.HotelRegistrationEJB

All Implemented Interfaces:

HotelReservationist, HotelRegistrationLocal, HotelRegistrationRemote

public class HotelRegistrationEJB
extends Object
implements HotelRegistrationRemote, HotelRegistrationLocal

This class provides a stateless EJB wrapper around stateless logic that performs operations on the hotel.

Author:

jcstaff

Field Summary

Fields

Modifier and Type	Field and Description
private SessionContext	ctx
private EntityManager	em
private org.apache.commons.logging.Log	log
private HotelReservationist	reservationist

Constructor Summary

Constructors

Constructor and Description
HotelRegistrationEJB()

Method Summary

Modifier and Type	Method and Description
void	cancelReservation(Reservation reservation) This method will cause the current transaction to be rolled back if the business logic reports an exception cancelling a reservation.
void	cleanupReservation(String confirmation)
void	close() This method is called whenever the EJB is evicted from the container; which is not too often for stateless session beans under normal circumstances.
Reservation	commitReservation(Reservation reservation) This method is just a pass-thru to the business logic.
Reservation	createReservation(Person person, Date startDate, Date endDate) This method will rollack the current transaction if the business logic throws an exception while trying to create a reservation.
Reservation	getReservationByConfirmation(String confirmation)
List<Reservation>	getReservations(int index, int count)
List<Reservation>	getReservationsForPerson(Person person, int index, int count)
void	init() This method is called when the bean is created and is responsble for instantiating the business logic implementation, a DAO, and assigning the EntityManager for the DAO(s) to use.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

private org.apache.commons.logging.Log log

em

private EntityManager em

ctx

private SessionContext ctx

reservationist

private HotelReservationist reservationist

Constructor Detail

HotelRegistrationEJB

public HotelRegistrationEJB()

Method Detail

init

@PostConstruct
public void init()

This method is called when the bean is created and is responsble for instantiating the business logic implementation, a DAO, and assigning the EntityManager for the DAO(s) to use.

close

@PreDestroy
public void close()

This method is called whenever the EJB is evicted from the container; which is not too often for stateless session beans under normal circumstances.

cancelReservation

public void cancelReservation(Reservation reservation)
                       throws HotelReservationException

This method will cause the current transaction to be rolled back if the business logic reports an exception cancelling a reservation.

Specified by:

cancelReservation in interface HotelReservationist

Throws:

HotelReservationException

commitReservation

public Reservation commitReservation(Reservation reservation)
                              throws HotelReservationException

This method is just a pass-thru to the business logic.

Specified by:

commitReservation in interface HotelReservationist

Throws:

HotelReservationException

createReservation

public Reservation createReservation(Person person,
                                     Date startDate,
                                     Date endDate)
                              throws HotelReservationException

This method will rollack the current transaction if the business logic throws an exception while trying to create a reservation.

Specified by:

createReservation in interface HotelReservationist

Throws:

HotelReservationException

getReservations

public List<Reservation> getReservations(int index,
                                         int count)
                                  throws HotelReservationException

Specified by:

getReservations in interface HotelReservationist

Throws:

HotelReservationException

getReservationsForPerson

public List<Reservation> getReservationsForPerson(Person person,
                                                  int index,
                                                  int count)
                                           throws HotelReservationException

Specified by:

getReservationsForPerson in interface HotelReservationist

Throws:

HotelReservationException

getReservationByConfirmation

public Reservation getReservationByConfirmation(String confirmation)
                                         throws HotelReservationException

Specified by:

getReservationByConfirmation in interface HotelReservationist

Throws:

HotelReservationException

cleanupReservation

public void cleanupReservation(String confirmation)
                        throws HotelReservationException

Specified by:

cleanupReservation in interface HotelReservationist

Throws:

HotelReservationException