org.overlord.commons.services

Class OSGiServiceRegistry

java.lang.Object

org.overlord.commons.services.AbstractServiceRegistry

org.overlord.commons.services.OSGiServiceRegistry

All Implemented Interfaces:

ServiceRegistry

public class OSGiServiceRegistry
extends AbstractServiceRegistry

Implements a service registry by delegating to the osgi service registry.

Author:

eric.wittmann@redhat.com

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OSGiServiceRegistry.ServiceListenerAdapter<T> This class bridges between the OSGi service listener and the commons service listener.

Constructor Summary

Constructors

Constructor and Description
OSGiServiceRegistry() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
<T> void	addServiceListener(Class<T> serviceInterface, ServiceListener<T> listener) This method registers a service listener associated with the supplied service interface.
protected void	close(Class<?> serviceInterface, Object service) Close the supplied service.
<T> Set<T>	getServices(Class<T> serviceInterface) Gets a set of all the services that have been registered for the given service interface.
<T> T	getSingleService(Class<T> serviceInterface) Gets a single service.
protected <T> void	init(Class<T> serviceInterface, Object service) This method initializes the supplied service.
<T> void	removeServiceListener(ServiceListener<T> listener) This method unregisters a service listener.

Methods inherited from class org.overlord.commons.services.AbstractServiceRegistry

close, init

Methods inherited from class java.lang.Object

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

Constructor Detail

OSGiServiceRegistry

public OSGiServiceRegistry()

Constructor.

Method Detail

init

protected <T> void init(Class<T> serviceInterface,
            Object service)

This method initializes the supplied service.

Parameters:

serviceInterface - The service interface

service - The service

close

protected void close(Class<?> serviceInterface,
         Object service)

Close the supplied service.

Parameters:

serviceInterface - The service interface

service - The service

getSingleService

public <T> T getSingleService(Class<T> serviceInterface)
                   throws IllegalStateException

Description copied from interface: ServiceRegistry

Gets a single service. If multiple services are registered for the service interface, this method will fail.

Throws:

IllegalStateException

See Also:

ServiceRegistry.getSingleService(java.lang.Class)

getServices

public <T> Set<T> getServices(Class<T> serviceInterface)

Description copied from interface: ServiceRegistry

Gets a set of all the services that have been registered for the given service interface.

See Also:

ServiceRegistry.getServices(java.lang.Class)

addServiceListener

public <T> void addServiceListener(Class<T> serviceInterface,
                          ServiceListener<T> listener)

This method registers a service listener associated with the supplied service interface.

Specified by:

addServiceListener in interface ServiceRegistry

Overrides:

addServiceListener in class AbstractServiceRegistry

Parameters:

serviceInterface - The service type

listener - The service listener

removeServiceListener

public <T> void removeServiceListener(ServiceListener<T> listener)

This method unregisters a service listener.

Specified by:

removeServiceListener in interface ServiceRegistry

Overrides:

removeServiceListener in class AbstractServiceRegistry

Parameters:

listener - The service listener