ej.components.registry.impl

Class AbstractRegistry

java.lang.Object

ej.components.registry.impl.AbstractRegistry

All Implemented Interfaces:

BundleActivator, BundleRegistry, ServiceProvider, ServiceRegistry

Direct Known Subclasses:

FileRegistry

public abstract class AbstractRegistry
extends Object
implements BundleActivator, BundleRegistry

Default implementation of the bundle registry.

Nested Class Summary

Nested classes/interfaces inherited from interface ej.components.registry.BundleActivator

BundleActivator.State

Constructor Summary

Constructors

Constructor and Description
AbstractRegistry() Creates a new registry.

Method Summary

Modifier and Type	Method and Description
BundleActivator.State	getCurrentState() Gets the current state of the registry.
<T> T	getService(Class<T> service) Gets the instance of the given service.
void	initialize() Initializes the bundle.
void	link() Prepares the bundle.
protected abstract BundleActivator[]	loadBundles() Gets the loaded bundles.
<T> void	register(Class<T> service, T implementation) Registers a service implementation.
void	reset() Stops the registry and all its environment and prepare it to be restarted.
void	start() Starts the bundle.
void	stop() Stops the bundle.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractRegistry

public AbstractRegistry()

Creates a new registry.

Method Detail

getCurrentState

public BundleActivator.State getCurrentState()

Description copied from interface: BundleRegistry

Gets the current state of the registry.

Specified by:

getCurrentState in interface BundleRegistry

Returns:

the current state.

See Also:

BundleActivator.State

getService

@Nullable
public <T> T getService(Class<T> service)

Description copied from interface: ServiceProvider

Gets the instance of the given service.

Specified by:

getService in interface ServiceProvider

Type Parameters:

T - the service type.

Parameters:

service - the service.

Returns:

the instance of the given service.

initialize

public void initialize()

Description copied from interface: BundleActivator

Initializes the bundle.

Initializes and registers bundle services in the BundleRegistry instance.

Specified by:

initialize in interface BundleActivator

See Also:

ServiceRegistry.register(Class, Object)

link

public void link()

Description copied from interface: BundleActivator

Prepares the bundle.

Links bundle services to other services.

Specified by:

link in interface BundleActivator

See Also:

ServiceProvider.getService(Class)

loadBundles

protected abstract BundleActivator[] loadBundles()

Gets the loaded bundles.

Returns:

the loaded bundles.

register

public <T> void register(Class<T> service,
                         T implementation)

Description copied from interface: ServiceRegistry

Registers a service implementation.

The given instance is returned each time the service is requested by ServiceProvider.getService(Class).

Specified by:

register in interface ServiceRegistry

Type Parameters:

T - the service type.

Parameters:

service - the implemented service.

implementation - the service implementation.

reset

public void reset()

Description copied from interface: BundleRegistry

Stops the registry and all its environment and prepare it to be restarted.

Specified by:

reset in interface BundleRegistry

start

public void start()

Description copied from interface: BundleActivator

Starts the bundle.

At this step, all the bundles are prepared and ready. The services could be started.

Specified by:

start in interface BundleActivator

stop

public void stop()

Description copied from interface: BundleActivator

Stops the bundle.

Unlinks it from the others services and clean possible resources and threads.

Specified by:

stop in interface BundleActivator