org.apache.servicemix.nmr.api.event
Interface ListenerRegistry

All Superinterfaces:

ServiceRegistry<Listener>

public interface ListenerRegistry
extends ServiceRegistry<Listener>

A registry of listeners.

Method Summary

<T extends Listener> java.lang.Iterable<T>	getListeners(java.lang.Class<T> type) Retrieve an iterator of listeners of a certain type
void	register(Listener listener, java.util.Map<java.lang.String,?> properties) Add a listener to the registry.
void	unregister(Listener listener, java.util.Map<java.lang.String,?> properties) Remove a listener.

Methods inherited from interface org.apache.servicemix.nmr.api.service.ServiceRegistry

getProperties, getServices

Method Detail

register

void register(Listener listener,
              java.util.Map<java.lang.String,?> properties)

Add a listener to the registry. In an OSGi world, listeners would be automatically added by a ServiceTracker.

Specified by:

register in interface ServiceRegistry<Listener>

Parameters:

listener - the listener to add

properties - metadata associated with this listener. It may include data used for filtering events.

unregister

void unregister(Listener listener,
                java.util.Map<java.lang.String,?> properties)

Remove a listener. In an OSGi world, this would be performed automatically by a ServiceTracker.

Specified by:

unregister in interface ServiceRegistry<Listener>

Parameters:

listener - the listener to remove

getListeners

<T extends Listener> java.lang.Iterable<T> getListeners(java.lang.Class<T> type)

Retrieve an iterator of listeners of a certain type

Parameters:

type - the type of listeners

Returns:

an iterator over the registered listeners