org.osgi.framework

Interface ServiceListener

All Superinterfaces:

java.util.EventListener

All Known Subinterfaces:

AllServiceListener

All Known Implementing Classes:

Listeners

public interface ServiceListener
extends java.util.EventListener

A ServiceEvent listener. When a ServiceEvent is fired, it is synchronously delivered to a BundleListener.

ServiceListener is a listener interface that may be implemented by a bundle developer.

A ServiceListener object is registered with the Framework using the BundleContext.addServiceListener method. ServiceListener objects are called with a ServiceEvent object when a service is registered, modified, or is in the process of unregistering.

ServiceEvent object delivery to ServiceListener objects is filtered by the filter specified when the listener was registered. If the Java Runtime Environment supports permissions, then additional filtering is done. ServiceEvent objects are only delivered to the listener if the bundle which defines the listener object's class has the appropriate ServicePermission to get the service using at least one of the named classes the service was registered under.

ServiceEvent object delivery to ServiceListener objects is further filtered according to package sources as defined in ServiceReference.isAssignableTo(Bundle, String).

See Also:

ServiceEvent, ServicePermission

Method Summary

Methods

Modifier and Type	Method and Description
void	serviceChanged(ServiceEvent event) Receives notification that a service has had a lifecycle change.

Method Detail

serviceChanged

void serviceChanged(ServiceEvent event)

Receives notification that a service has had a lifecycle change.

Parameters:

event - The ServiceEvent object.