com.communote.server.persistence.resource

Interface AttachmentDao

All Known Implementing Classes:

AttachmentDaoBase, AttachmentDaoImpl

public interface AttachmentDao

Author:

Communote GmbH - http://www.communote.com/

See Also:

Attachment

Field Summary

Fields

Modifier and Type	Field and Description
static int	TRANSFORM_NONE This constant is used as a transformation flag; entities can be converted automatically into value objects or other types, different methods in a class implementing this interface support this feature: look for an int parameter called transform.

Method Summary

Modifier and Type	Method and Description
Attachment	create(Attachment attachment) Creates an instance of Attachment and adds it to the persistent store.
Collection<Attachment>	create(Collection<Attachment> entities) Creates a new instance of Attachment and adds from the passed in entities collection
Object	create(int transform, Attachment attachment) Does the same thing as create(Attachment) with an additional flag called transform.
Collection<?>	create(int transform, Collection<Attachment> entities) Does the same thing as create(Attachment) with an additional flag called transform.
void	evict(Attachment entity) Evicts (removes) the entity from the hibernate cache
Object	find(int transform, String contentIdentifier, String repositoryIdentifier) Does the same thing as find(String, String) with an additional flag called transform.
Attachment	find(String contentIdentifier, String repositoryIdentifier) Find a resource by the given identifiers
Attachment	findContentTypeNull() Find an attachments with an empty content type to be migrated
Note	findNoteByContentId(ContentId contentId) Finds the note by a given content id of an attachment.
Collection<Long>	findOrphanedAttachments(Date upperUploadDate) Find all attachments which are not connected with a note and which are older than the given date.
Object	load(int transform, Long id) Does the same thing as load(Long) with an additional flag called transform.
Attachment	load(Long id) Loads an instance of Attachment from the persistent store.
Collection<Attachment>	loadAll() Loads all entities of type Attachment.
Collection<?>	loadAll(int transform) Does the same thing as loadAll() with an additional flag called transform.
void	remove(Attachment attachment) Removes the instance of Attachment from the persistent store.
void	remove(Collection<Attachment> entities) Removes all entities in the given entities collection.
void	remove(Long id) Removes the instance of Attachment having the given identifier from the persistent store.
void	update(Attachment attachment) Updates the attachment instance in the persistent store.
void	update(Collection<Attachment> entities) Updates all instances in the entities collection in the persistent store.

Field Detail

TRANSFORM_NONE

static final int TRANSFORM_NONE

This constant is used as a transformation flag; entities can be converted automatically into value objects or other types, different methods in a class implementing this interface support this feature: look for an int parameter called transform.

This specific flag denotes no transformation will occur.

See Also:

Constant Field Values

Method Detail

create

Attachment create(Attachment attachment)

Creates an instance of Attachment and adds it to the persistent store.

create

Collection<Attachment> create(Collection<Attachment> entities)

Creates a new instance of Attachment and adds from the passed in entities collection

Parameters:

entities - the collection of Attachment instances to create.

Returns:

the created instances.

create

Object create(int transform,
              Attachment attachment)

Does the same thing as create(Attachment) with an additional flag called transform. If this flag is set to TRANSFORM_NONE then the returned entity will NOT be transformed. If this flag is any of the other constants defined here then the result WILL BE passed through an operation which can optionally transform the entity (into a value object for example). By default, transformation does not occur.

create

Collection<?> create(int transform,
                     Collection<Attachment> entities)

Does the same thing as create(Attachment) with an additional flag called transform. If this flag is set to TRANSFORM_NONE then the returned entity will NOT be transformed. If this flag is any of the other constants defined here then the result WILL BE passed through an operation which can optionally transform the entities (into value objects for example). By default, transformation does not occur.

evict

void evict(Attachment entity)

Evicts (removes) the entity from the hibernate cache

Parameters:

entity - the entity to evict

find

Object find(int transform,
            String contentIdentifier,
            String repositoryIdentifier)

Does the same thing as find(String, String) with an additional flag called transform. If this flag is set to TRANSFORM_NONE then finder results will NOT be transformed during retrieval. If this flag is any of the other constants defined here then finder results WILL BE passed through an operation which can optionally transform the entities (into value objects for example). By default, transformation does not occur.

find

Attachment find(String contentIdentifier,
                String repositoryIdentifier)

Find a resource by the given identifiers

findContentTypeNull

Attachment findContentTypeNull()

Find an attachments with an empty content type to be migrated

findNoteByContentId

Note findNoteByContentId(ContentId contentId)

Finds the note by a given content id of an attachment.

findOrphanedAttachments

Collection<Long> findOrphanedAttachments(Date upperUploadDate)

Find all attachments which are not connected with a note and which are older than the given date.

Parameters:

upperUploadDate - Attachments must be older than this date.

Returns:

the IDs of the found attachments

load

Object load(int transform,
            Long id)

Does the same thing as load(Long) with an additional flag called transform. If this flag is set to TRANSFORM_NONE then the returned entity will NOT be transformed. If this flag is any of the other constants defined in this class then the result WILL BE passed through an operation which can optionally transform the entity (into a value object for example). By default, transformation does not occur.

Parameters:

id - the identifier of the entity to load.

Returns:

either the entity or the object transformed from the entity.

load

Attachment load(Long id)

Loads an instance of Attachment from the persistent store.

loadAll

Collection<Attachment> loadAll()

Loads all entities of type Attachment.

Returns:

the loaded entities.

loadAll

Collection<?> loadAll(int transform)

Does the same thing as loadAll() with an additional flag called transform. If this flag is set to TRANSFORM_NONE then the returned entity will NOT be transformed. If this flag is any of the other constants defined here then the result WILL BE passed through an operation which can optionally transform the entity (into a value object for example). By default, transformation does not occur.

Parameters:

transform - the flag indicating what transformation to use.

Returns:

the loaded entities.

remove

void remove(Attachment attachment)

Removes the instance of Attachment from the persistent store.

remove

void remove(Collection<Attachment> entities)

Removes all entities in the given entities collection.

remove

void remove(Long id)

Removes the instance of Attachment having the given identifier from the persistent store.

update

void update(Attachment attachment)

Updates the attachment instance in the persistent store.

update

void update(Collection<Attachment> entities)

Updates all instances in the entities collection in the persistent store.