fr.inria.atlanmod.neoemf.data

Class BackendFactoryRegistry

java.lang.Object

fr.inria.atlanmod.neoemf.data.BackendFactoryRegistry

@ParametersAreNonnullByDefault
public final class BackendFactoryRegistry
extends Object

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

This BackendFactoryRegistry is used for dynamically create Store and Backend when loading and saving a PersistentResource. For this reason, a BackendFactory must be registered before using these operations, with the register(String, BackendFactory) method.

See Also:

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

Method Summary

Modifier and Type	Method and Description
BackendFactory	getFactoryFor(String scheme) Returns the BackendFactory identified by the given URI scheme.
static BackendFactoryRegistry	getInstance() Returns the instance of this class.
boolean	isRegistered(String scheme) Checks that a BackendFactory is registered for the given URI scheme.
void	register(String scheme, BackendFactory factory) Registers a BackendFactory identified by the given URI scheme.
void	unregister(String scheme) Unregisters a BackendFactory identified by the specified URI scheme.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

@Nonnull
public static BackendFactoryRegistry getInstance()

Returns the instance of this class.

Returns:

the instance of this class

getFactoryFor

@Nonnull
public BackendFactory getFactoryFor(String scheme)

Returns the BackendFactory identified by the given URI scheme.

Parameters:

scheme - the URI scheme identifying the factory

Returns:

the factory

Throws:

IllegalArgumentException - if scheme is null, or if no factory is registered for the scheme

isRegistered

public boolean isRegistered(@Nullable
                            String scheme)

Checks that a BackendFactory is registered for the given URI scheme.

Parameters:

scheme - the URI scheme identifying the factory

Returns:

true if a factory is registered for the scheme

register

public void register(String scheme,
                     BackendFactory factory)

Registers a BackendFactory identified by the given URI scheme.

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

Parameters:

scheme - the URI scheme identifying the factory

factory - the factory

Throws:

NullPointerException - if any argument is null

unregister

public void unregister(String scheme)

Unregisters a BackendFactory identified by the specified URI scheme.

Parameters:

scheme - the URI scheme identifying the factory

Throws:

NullPointerException - if any argument is null