Package NTNU.IDATT1002.repository

Class AlbumRepository

java.lang.Object

NTNU.IDATT1002.repository.AbstractRepository<T,ID>

NTNU.IDATT1002.repository.PagingAndSortingRepository<Album,java.lang.Long>

NTNU.IDATT1002.repository.AlbumRepository

All Implemented Interfaces:

Repository<Album,java.lang.Long>

public class AlbumRepository
extends PagingAndSortingRepository<Album,java.lang.Long>

Album Repository. Implementation of AbstractRepository which supports regular Create, Read, Update and Delete operations. Supports paginated and sorted content through PagingAndSortingRepository.

Version:

1.0 19.03.20

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	ALBUM_FIND_BY_TAGS
static java.lang.String	ALBUM_FIND_BY_TITLE
static java.lang.String	ALBUM_FIND_BY_USERNAME	Mapping to @NamedQuery 'find all albums by username, tags, and title' defined in Album
static java.lang.String	ALBUM_FIND_PREVIEW_IMAGE

Fields inherited from class NTNU.IDATT1002.repository.AbstractRepository

entityClass, entityManager, logger

Constructor Summary

Constructors

Constructor	Description
AlbumRepository(javax.persistence.EntityManager entityManager)	Set the class type to Album

Method Summary

Modifier and Type	Method	Description
java.util.List<Album>	findAllByTags(java.lang.String tag)
java.util.List<Album>	findAllByTitle(java.lang.String title)	Find all albums by given title.
java.util.List<Album>	findAllByUsername(java.lang.String username)	Retrieves all albums of the user with the given username.
java.util.Optional<Image>	findPreviewImage(java.lang.Long albumId)	Find a single preview image from album with given id.

Methods inherited from class NTNU.IDATT1002.repository.PagingAndSortingRepository

findAll

Methods inherited from class NTNU.IDATT1002.repository.AbstractRepository

delete, deleteById, findAll, findById, save, setEntityClass, update

Methods inherited from class java.lang.Object

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

Field Details

ALBUM_FIND_BY_USERNAME

public static final java.lang.String ALBUM_FIND_BY_USERNAME

Mapping to @NamedQuery 'find all albums by username, tags, and title' defined in Album

See Also:

Constant Field Values

ALBUM_FIND_BY_TAGS

public static final java.lang.String ALBUM_FIND_BY_TAGS

See Also:

Constant Field Values

ALBUM_FIND_BY_TITLE

public static final java.lang.String ALBUM_FIND_BY_TITLE

See Also:

Constant Field Values

ALBUM_FIND_PREVIEW_IMAGE

public static final java.lang.String ALBUM_FIND_PREVIEW_IMAGE

See Also:

Constant Field Values

Constructor Details

AlbumRepository

public AlbumRepository(javax.persistence.EntityManager entityManager)

Set the class type to Album

Method Details

findAllByUsername

public java.util.List<Album> findAllByUsername(java.lang.String username)

Retrieves all albums of the user with the given username.

Parameters:

username - the username to query for

Returns:

the list of the users albums.

findAllByTags

public java.util.List<Album> findAllByTags(java.lang.String tag)

findAllByTitle

public java.util.List<Album> findAllByTitle(java.lang.String title)

Find all albums by given title.

Parameters:

title - the title to query for

Returns:

a list of albums found

findPreviewImage

public java.util.Optional<Image> findPreviewImage(java.lang.Long albumId)

Find a single preview image from album with given id. Creates a new entity manager for each call to allow concurrent fetching within the maximum connection pool size.

Parameters:

albumId - the id of the album

Returns:

Optional of image if found