Package io.github.marcopaglio.booking.repository.mongo

Class ReservationMongoRepository

java.lang.Object

io.github.marcopaglio.booking.repository.mongo.MongoRepository<Reservation>

io.github.marcopaglio.booking.repository.mongo.ReservationMongoRepository

All Implemented Interfaces:

ReservationRepository

public class ReservationMongoRepository
extends MongoRepository<Reservation>
implements ReservationRepository

Implementation of repository layer through MongoDB for Reservation entities of the booking application.

Field Summary

Fields inherited from class io.github.marcopaglio.booking.repository.mongo.MongoRepository

collection, session

Constructor Summary

Constructors

Constructor	Description
ReservationMongoRepository(com.mongodb.client.MongoClient client, com.mongodb.client.ClientSession session, String databaseName)	Constructs a repository layer for Reservation entities using MongoDB database.

Method Summary

Modifier and Type	Method	Description
void	delete(Reservation reservation)	Removes the unique specified reservation from the MongoDB database, if it exists, otherwise it does nothing.
List<Reservation>	findAll()	Retrieves all the reservations from the database in a list.
List<Reservation>	findByClient(UUID clientId)	Retrieves all the reservations associated with the specified client's identifier from the MongoDB database in a list.
Optional<Reservation>	findByDate(LocalDate date)	Retrieves the unique reservation of the specified date from the MongoDB database, if it exists.
Optional<Reservation>	findById(UUID id)	Retrieves the unique reservation with the specified identifier from the MongoDB database, if it exists.
Reservation	save(Reservation reservation)	Insert a new reservation in the MongoDB database or saves changes of an existing one.

Methods inherited from class io.github.marcopaglio.booking.repository.mongo.MongoRepository

getCollection

Methods inherited from class java.lang.Object

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

Constructor Details

ReservationMongoRepository

public ReservationMongoRepository(com.mongodb.client.MongoClient client,
 com.mongodb.client.ClientSession session,
 String databaseName)

Constructs a repository layer for Reservation entities using MongoDB database. The construction generates and configures a collection for using by the repository.

Parameters:

client - the MongoClient used to retrieve the collection.

session - the ClientSession used to communicate with MongoDB database.

databaseName - the name of the database in which the repository works.

Method Details

findAll

public List<Reservation> findAll()

Retrieves all the reservations from the database in a list.

Specified by:

findAll in interface ReservationRepository

Returns:

the List of Reservations found in the repository.

findByClient

public List<Reservation> findByClient(UUID clientId)

Retrieves all the reservations associated with the specified client's identifier from the MongoDB database in a list.

Specified by:

findByClient in interface ReservationRepository

Parameters:

clientId - the identifier of the associated client.

Returns:

the List of Reservations associated with clientId found in the repository.

findById

public Optional<Reservation> findById(UUID id)

Retrieves the unique reservation with the specified identifier from the MongoDB database, if it exists.

Specified by:

findById in interface ReservationRepository

Parameters:

id - the identifier of the reservation to find.

Returns:

an Optional contained the Reservation identified by id, if it exists; an Optional empty, otherwise.

findByDate

public Optional<Reservation> findByDate(LocalDate date)

Retrieves the unique reservation of the specified date from the MongoDB database, if it exists.

Specified by:

findByDate in interface ReservationRepository

Parameters:

date - the date of the reservation to find.

Returns:

an Optional contained the Reservation on date, if it exists; an Optional empty, otherwise.

save

public Reservation save(Reservation reservation)
                 throws IllegalArgumentException,
UpdateFailureException,
NotNullConstraintViolationException,
UniquenessConstraintViolationException

Insert a new reservation in the MongoDB database or saves changes of an existing one. Note: a Reservation without an identifier is considered to be entered, while with the identifier it will be updated.

Specified by:

save in interface ReservationRepository

Parameters:

reservation - the reservation to save.

Returns:

the Reservation saved.

Throws:

IllegalArgumentException - if reservation is null.

UpdateFailureException - if you try to save changes of a no longer existing reservation.

NotNullConstraintViolationException - if date or clientId of reservation to save are null.

UniquenessConstraintViolationException - if id or date of reservation to save are already present.

delete

public void delete(Reservation reservation)
            throws IllegalArgumentException

Removes the unique specified reservation from the MongoDB database, if it exists, otherwise it does nothing.

Specified by:

delete in interface ReservationRepository

Parameters:

reservation - the reservation to delete.

Throws:

IllegalArgumentException - if reservation is null.