Package io.github.marcopaglio.booking.service.transactional

Class TransactionalBookingService

java.lang.Object

io.github.marcopaglio.booking.service.transactional.TransactionalBookingService

All Implemented Interfaces:

BookingService

public class TransactionalBookingService
extends Object
implements BookingService

Implements methods for operating on repositories of the booking application using transactions.

See Also:

• ClientRepository
• ReservationRepository

Constructor Summary

Constructors

Constructor	Description
TransactionalBookingService(TransactionManager transactionManager)	Constructs a service for the booking application with a transaction manager.

Method Summary

Modifier and Type	Method	Description
List<Client>	findAllClients()	Retrieves all the clients saved in the database within a transaction.
List<Reservation>	findAllReservations()	Retrieves all the reservations saved in the database within a transaction.
Client	findClient(UUID id)	Retrieves the client with the specified id from the database within a transaction.
Client	findClientNamed(String firstName, String lastName)	Retrieves the client with specified name and surname from the database within a transaction.
Reservation	findReservation(UUID id)	Retrieves the reservation with the specified id from the database within a transaction.
Reservation	findReservationOn(LocalDate date)	Retrieves the reservation of the specified date from the database within a transaction.
Client	insertNewClient(Client client)	Adds a new client in the database within a transaction.
Reservation	insertNewReservation(Reservation reservation)	Adds a new reservation in the database within a transaction.
void	removeClient(UUID id)	Deletes the client with the specified id and all his reservation from the database within a transaction.
void	removeClientNamed(String firstName, String lastName)	Deletes the client with specified name and surname and all his reservation from the database within a transaction.
void	removeReservation(UUID id)	Deletes the reservation with the specified id from the database within a transaction.
void	removeReservationOn(LocalDate date)	Deletes the reservation of the specified date from the database within a transaction.
Client	renameClient(UUID id, String newFirstName, String newLastName)	Changes name and surname of the client with the specified id in the database within a transaction.
Reservation	rescheduleReservation(UUID id, LocalDate newDate)	Changes date of the reservation with the specified id in the database within a transaction.

Methods inherited from class java.lang.Object

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

Constructor Details

TransactionalBookingService

public TransactionalBookingService(TransactionManager transactionManager)

Constructs a service for the booking application with a transaction manager.

Parameters:

transactionManager - the TransactionManager used for applying transactions.

Method Details

findAllClients

public List<Client> findAllClients()
                            throws DatabaseException

Retrieves all the clients saved in the database within a transaction.

Specified by:

findAllClients in interface BookingService

Returns:

the list of clients found in the database.

Throws:

DatabaseException - if a database error occurs.

findAllReservations

public List<Reservation> findAllReservations()
                                      throws DatabaseException

Retrieves all the reservations saved in the database within a transaction.

Specified by:

findAllReservations in interface BookingService

Returns:

the list of reservations found in the database.

Throws:

DatabaseException - if a transaction failure occurs on database.

findClient

public Client findClient(UUID id)
                  throws InstanceNotFoundException,
DatabaseException

Retrieves the client with the specified id from the database within a transaction.

Specified by:

findClient in interface BookingService

Parameters:

id - the identifier of the client to find.

Returns:

the Client identified by id.

Throws:

InstanceNotFoundException - if there is no client with that id in the database.

DatabaseException - if a database error occurs.

findReservation

public Reservation findReservation(UUID id)
                            throws InstanceNotFoundException,
DatabaseException

Retrieves the reservation with the specified id from the database within a transaction.

Specified by:

findReservation in interface BookingService

Parameters:

id - the identifier of the reservation to find.

Returns:

the Reservation identified by id.

Throws:

InstanceNotFoundException - if there is no reservation with that id in the database.

DatabaseException - if a database error occurs.

findClientNamed

public Client findClientNamed(String firstName,
 String lastName)
                       throws InstanceNotFoundException,
DatabaseException

Retrieves the client with specified name and surname from the database within a transaction.

Specified by:

findClientNamed in interface BookingService

Parameters:

firstName - the name of the client to find.

lastName - the surname of the client to find.

Returns:

the Client named firstName and lastName.

Throws:

InstanceNotFoundException - if there is no client with those names in the database.

DatabaseException - if a transaction failure occurs on database.

findReservationOn

public Reservation findReservationOn(LocalDate date)
                              throws InstanceNotFoundException,
DatabaseException

Retrieves the reservation of the specified date from the database within a transaction.

Specified by:

findReservationOn in interface BookingService

Parameters:

date - the date of the reservation to find.

Returns:

the Reservation on date.

Throws:

InstanceNotFoundException - if there is no reservation on that date in the database.

DatabaseException - if a transaction failure occurs on database.

insertNewClient

public Client insertNewClient(Client client)
                       throws InstanceAlreadyExistsException,
DatabaseException

Adds a new client in the database within a transaction. This method checks if the client is present in the database before inserting.

Specified by:

insertNewClient in interface BookingService

Parameters:

client - the client to insert.

Returns:

the Client inserted.

Throws:

InstanceAlreadyExistsException - if client is already in the database.

DatabaseException - if a transaction failure occurs on database.

insertNewReservation

public Reservation insertNewReservation(Reservation reservation)
                                 throws InstanceAlreadyExistsException,
InstanceNotFoundException,
DatabaseException

Adds a new reservation in the database within a transaction. This method checks if the reservation is not present and the associated client is present in the database before inserting.

Specified by:

insertNewReservation in interface BookingService

Parameters:

reservation - the reservation to insert.

Returns:

the Reservation inserted.

Throws:

InstanceAlreadyExistsException - if reservation is already in the database.

InstanceNotFoundException - if the associated client doesn't exist in the database.

DatabaseException - if a transaction failure occurs on database.

removeClient

public void removeClient(UUID id)
                  throws InstanceNotFoundException,
DatabaseException

Deletes the client with the specified id and all his reservation from the database within a transaction.

Specified by:

removeClient in interface BookingService

Parameters:

id - the identifier of the client to remove.

Throws:

InstanceNotFoundException - if there is no client with that identifier in the database.

DatabaseException - if a database error occurs.

removeReservation

public void removeReservation(UUID id)
                       throws InstanceNotFoundException,
DatabaseException

Deletes the reservation with the specified id from the database within a transaction.

Specified by:

removeReservation in interface BookingService

Parameters:

id - the identifier of the reservation to remove.

Throws:

InstanceNotFoundException - if there is no reservation with that identifier in the database.

DatabaseException - if a database error occurs.

removeClientNamed

public void removeClientNamed(String firstName,
 String lastName)
                       throws InstanceNotFoundException,
DatabaseException

Deletes the client with specified name and surname and all his reservation from the database within a transaction. This method checks if the client is present in the database before removing.

Specified by:

removeClientNamed in interface BookingService

Parameters:

firstName - the name of the client to remove.

lastName - the surname of the client to remove.

Throws:

InstanceNotFoundException - if there is no client with those names in the database.

DatabaseException - if a transaction failure occurs on database.

removeReservationOn

public void removeReservationOn(LocalDate date)
                         throws InstanceNotFoundException,
DatabaseException

Deletes the reservation of the specified date from the database within a transaction. This method checks if the reservation is present in the database before removing.

Specified by:

removeReservationOn in interface BookingService

Parameters:

date - the date of the reservation to find.

Throws:

InstanceNotFoundException - if there is no reservation on that date in the database.

DatabaseException - if a transaction failure occurs on database.

renameClient

public Client renameClient(UUID id,
 String newFirstName,
 String newLastName)
                    throws InstanceNotFoundException,
InstanceAlreadyExistsException,
DatabaseException

Changes name and surname of the client with the specified id in the database within a transaction.

Specified by:

renameClient in interface BookingService

Parameters:

id - the identifier of the client to rename.

newFirstName - the new name for the client.

newLastName - the new surname for the client.

Returns:

the Client renamed.

Throws:

InstanceNotFoundException - if there is no client with specified id in the database.

InstanceAlreadyExistsException - if a Client with those names is already in the database.

DatabaseException - if a database error occurs.

rescheduleReservation

public Reservation rescheduleReservation(UUID id,
 LocalDate newDate)
                                  throws InstanceNotFoundException,
InstanceAlreadyExistsException,
DatabaseException

Changes date of the reservation with the specified id in the database within a transaction.

Specified by:

rescheduleReservation in interface BookingService

Parameters:

id - the identifier of the reservation to reschedule.

newDate - the new date for the reservation.

Returns:

the Reservation rescheduled.

Throws:

InstanceNotFoundException - if there is no reservation with specified id in the database.

InstanceAlreadyExistsException - if a reservation with that date is already in the database.

DatabaseException - if a database error occurs.