org.overlord.commons.services

Interface ServiceRegistry

All Known Implementing Classes:

AbstractServiceRegistry, CompositeServiceRegistry, OSGiServiceRegistry, ServiceLoaderServiceRegistry

public interface ServiceRegistry

All service registry implementations must implement this interface.

Author:

eric.wittmann@redhat.com

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.
<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.
<T> void	removeServiceListener(ServiceListener<T> listener) This method unregisters a service listener.

Method Detail

getSingleService

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

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

Parameters:

service -

Throws:

IllegalStateException

getServices

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

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

Parameters:

serviceInterface -

addServiceListener

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

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

Parameters:

serviceInterface - The service type

listener - The service listener

removeServiceListener

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

This method unregisters a service listener.

Parameters:

listener - The service listener