fr.inria.atlanmod.neoemf.data

Class PersistenceBackendFactoryRegistry

java.lang.Object

fr.inria.atlanmod.neoemf.data.PersistenceBackendFactoryRegistry

public class PersistenceBackendFactoryRegistry
extends Object

The registry that holds registered URI schemes with their associated PersistenceBackendFactory.

This PersistenceBackendFactoryRegistry is used for dynamically create PersistentStore and PersistenceBackend when loading and saving a PersistentResource. For this reason, a PersistenceBackendFactory must be registered before using these operations, with the register(String, PersistenceBackendFactory) method.

See Also:

Resource.load(Map), Resource.save(Map)

Method Summary

Modifier and Type	Method and Description
static Map<String,PersistenceBackendFactory>	getFactories() Returns all registered URI schemes with their PersistenceBackendFactory.
static PersistenceBackendFactory	getFactoryProvider(String scheme) Returns a specific PersistenceBackendFactory identified by the given URI scheme.
static boolean	isRegistered(String scheme) Defines if a PersistenceBackendFactory is registered for the given URI scheme.
static void	register(String scheme, PersistenceBackendFactory factory) Registers a PersistenceBackendFactory identified by the given URI scheme.
static void	unregister(String scheme) Unregisters a PersistenceBackendFactory identified by the given URI scheme.
static void	unregisterAll() Unregisters all back-end factories.

Methods inherited from class java.lang.Object

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

Method Detail

getFactories

@Nonnull
public static Map<String,PersistenceBackendFactory> getFactories()

Returns all registered URI schemes with their PersistenceBackendFactory.

Returns:

an immutable map

getFactoryProvider

@Nonnull
public static PersistenceBackendFactory getFactoryProvider(String scheme)

Returns a specific PersistenceBackendFactory identified by the given URI scheme.

Parameters:

scheme - the URI scheme identifying the back-end factory

Returns:

the back-end factory

Throws:

NullPointerException - if no back-end factory is registered for the given scheme

isRegistered

public static boolean isRegistered(@Nullable
                                   String scheme)

Defines if a PersistenceBackendFactory is registered for the given URI scheme.

Parameters:

scheme - the URI scheme identifying the back-end factory

Returns:

true if a back-end factory is registered for the given scheme

register

public static void register(@Nonnull
                            String scheme,
                            @Nonnull
                            PersistenceBackendFactory factory)

Registers a PersistenceBackendFactory identified by the given URI scheme.

If the given URI scheme is already registered, its value will be overridden by the given factory.

Parameters:

scheme - the URI scheme identifying the back-end factory

factory - the back-end factory

unregister

public static void unregister(@Nullable
                              String scheme)

Unregisters a PersistenceBackendFactory identified by the given URI scheme.

Parameters:

scheme - the URI scheme identifying the back-end factory

unregisterAll

public static void unregisterAll()

Unregisters all back-end factories.