Package org.fcrepo.persistence.ocfl.impl

Class DbFedoraToOcflObjectIndex

java.lang.Object

org.fcrepo.persistence.ocfl.impl.DbFedoraToOcflObjectIndex

All Implemented Interfaces:

FedoraToOcflObjectIndex

@Component("ocflIndexImpl")
public class DbFedoraToOcflObjectIndex
extends Object
implements FedoraToOcflObjectIndex

Maps Fedora IDs to the OCFL IDs of the OCFL objects the Fedora resource is stored in. This implementation is backed by a relational database.

Author:

pwinckles

Constructor Summary

Constructors

Constructor	Description
DbFedoraToOcflObjectIndex(DataSource dataSource)

Method Summary

Modifier and Type	Method	Description
FedoraOcflMapping	addMapping(Transaction transaction, FedoraId fedoraId, FedoraId fedoraRootId, String ocflId)	Adds a mapping to the index
void	commit(Transaction transaction)	Commit mapping changes for the session.
FedoraOcflMapping	getMapping(Transaction transaction, FedoraId fedoraId)	Retrieve identification information for the OCFL object which either contains, or is identified by, the provided fedora resource id.
void	removeMapping(Transaction transaction, FedoraId fedoraId)	Removes a mapping
void	reset()	Remove all persistent state associated with the index.
void	rollback(Transaction transaction)	Rollback mapping changes for the session.
void	setup()

Methods inherited from class java.lang.Object

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

Constructor Detail

DbFedoraToOcflObjectIndex

public DbFedoraToOcflObjectIndex(@Autowired
                                 DataSource dataSource)

Method Detail

setup

@PostConstruct
public void setup()

getMapping

public FedoraOcflMapping getMapping(Transaction transaction,
                                    FedoraId fedoraId)
                             throws FedoraOcflMappingNotFoundException

Description copied from interface: FedoraToOcflObjectIndex

Retrieve identification information for the OCFL object which either contains, or is identified by, the provided fedora resource id. In other words the method will find the closest resource that is persisted as an OCFL object and returns its identifiers. If you pass fedora identifier that is not part of an archival group such as "my/fedora/binary/fcr:metadata" the fedora resource returned in the mapping will be "my/fedora/binary". Contrast this with an Archival Group example: if you pass in "my/archival-group/binary/fcr:metadata" the resource returned in the mapping would be "my/archival-group".

Specified by:

getMapping in interface FedoraToOcflObjectIndex

Parameters:

transaction - the current session, or null for read-only.

fedoraId - the fedora resource identifier

Returns:

the mapping

Throws:

FedoraOcflMappingNotFoundException - when no mapping exists for the specified identifier.

addMapping

public FedoraOcflMapping addMapping(@Nonnull
                                    Transaction transaction,
                                    FedoraId fedoraId,
                                    FedoraId fedoraRootId,
                                    String ocflId)

Description copied from interface: FedoraToOcflObjectIndex

Adds a mapping to the index

Specified by:

addMapping in interface FedoraToOcflObjectIndex

Parameters:

transaction - the current session.

fedoraId - The fedora resource

fedoraRootId - The identifier of the root fedora object resource

ocflId - The ocfl object id

Returns:

The newly created mapping

removeMapping

public void removeMapping(@Nonnull
                          Transaction transaction,
                          FedoraId fedoraId)

Description copied from interface: FedoraToOcflObjectIndex

Removes a mapping

Specified by:

removeMapping in interface FedoraToOcflObjectIndex

Parameters:

transaction - the current session.

fedoraId - The fedora resource to remove the mapping for

reset

public void reset()

Description copied from interface: FedoraToOcflObjectIndex

Remove all persistent state associated with the index.

Specified by:

reset in interface FedoraToOcflObjectIndex

commit

public void commit(@Nonnull
                   Transaction transaction)

Description copied from interface: FedoraToOcflObjectIndex

Commit mapping changes for the session.

Specified by:

commit in interface FedoraToOcflObjectIndex

Parameters:

transaction - the session to commit.

rollback

@Transactional(propagation=NOT_SUPPORTED)
public void rollback(@Nonnull
                     Transaction transaction)

Description copied from interface: FedoraToOcflObjectIndex

Rollback mapping changes for the session.

Specified by:

rollback in interface FedoraToOcflObjectIndex

Parameters:

transaction - the session to rollback.