org.overlord.commons.services

Class CompositeServiceRegistry

java.lang.Object

org.overlord.commons.services.CompositeServiceRegistry

All Implemented Interfaces:

ServiceRegistry

public class CompositeServiceRegistry
extends Object
implements ServiceRegistry

Manages a list of service registries. The first one always wins.

Author:

eric.wittmann@redhat.com

Constructor Summary

Constructors

Constructor and Description
CompositeServiceRegistry() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	addRegistry(ServiceRegistry registry)
<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.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeServiceRegistry

public CompositeServiceRegistry()

Constructor.

Method Detail

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.

Specified by:

getSingleService in interface ServiceRegistry

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.

Specified by:

getServices in interface ServiceRegistry

See Also:

ServiceRegistry.getServices(java.lang.Class)

addServiceListener

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

Description copied from interface: ServiceRegistry

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

Specified by:

addServiceListener in interface ServiceRegistry

Parameters:

serviceInterface - The service type

listener - The service listener

See Also:

ServiceRegistry.addServiceListener(java.lang.Class,org.overlord.commons.services.ServiceListener)

removeServiceListener

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

Description copied from interface: ServiceRegistry

This method unregisters a service listener.

Specified by:

removeServiceListener in interface ServiceRegistry

Parameters:

listener - The service listener

See Also:

ServiceRegistry.removeServiceListener(org.overlord.commons.services.ServiceListener)

addRegistry

public void addRegistry(ServiceRegistry registry)

Parameters:

registry -