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OSGi™ Service Platform Release 4 |
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A ServiceEvent
listener.
AllServiceListener
is a listener interface that may be
implemented by a bundle developer.
An AllServiceListener
object is registered with the Framework
using the BundleContext.addServiceListener
method.
AllServiceListener
objects are called with a
ServiceEvent
object when a service is registered, modified, or
is in the process of unregistering.
ServiceEvent
object delivery to
AllServiceListener
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.
Unlike normal ServiceListener
objects,
AllServiceListener
objects receive all ServiceEvent objects
regardless of the whether the package source of the listening bundle is equal
to the package source of the bundle that registered the service. This means
that the listener may not be able to cast the service object to any of its
corresponding service interfaces if the service object is retrieved.
ServiceEvent
,
ServicePermission
Methods inherited from interface org.osgi.framework.ServiceListener |
serviceChanged |
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OSGi™ Service Platform Release 4 |
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