Class WhiteboardServiceTracker<T>
java.lang.Object
org.osgi.util.tracker.ServiceTracker<T,org.osgi.framework.ServiceReference<T>>
org.apache.felix.http.base.internal.whiteboard.tracker.WhiteboardServiceTracker<T>
- All Implemented Interfaces:
org.osgi.util.tracker.ServiceTrackerCustomizer<T,
org.osgi.framework.ServiceReference<T>>
- Direct Known Subclasses:
FilterTracker
,JavaxFilterTracker
,JavaxListenersTracker
,JavaxPreprocessorTracker
,JavaxServletTracker
,ListenersTracker
,PreprocessorTracker
,ResourceTracker
,ServletTracker
public abstract class WhiteboardServiceTracker<T>
extends org.osgi.util.tracker.ServiceTracker<T,org.osgi.framework.ServiceReference<T>>
Service tracker for all whiteboard services except servlet context helper.
This tracker does not get/unget the service objects itself, but just forwards the service reference
by creating an info data object. Each sub class creates a different
data object.
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Field Summary
Fields inherited from class org.osgi.util.tracker.ServiceTracker
context, filter
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Constructor Summary
ConstructorsConstructorDescriptionWhiteboardServiceTracker
(WhiteboardManager contextManager, org.osgi.framework.BundleContext bundleContext, String filterExpr) Create a new tracker -
Method Summary
Modifier and TypeMethodDescriptionfinal org.osgi.framework.ServiceReference<T>
addingService
(org.osgi.framework.ServiceReference<T> ref) void
close()
protected abstract WhiteboardServiceInfo<T>
getServiceInfo
(org.osgi.framework.ServiceReference<T> ref) Implemented by sub classes to create the correct whiteboard service info object.final void
modifiedService
(org.osgi.framework.ServiceReference<T> ref, org.osgi.framework.ServiceReference<T> service) final void
removedService
(org.osgi.framework.ServiceReference<T> ref, org.osgi.framework.ServiceReference<T> service) Methods inherited from class org.osgi.util.tracker.ServiceTracker
getService, getService, getServiceReference, getServiceReferences, getServices, getServices, getTracked, getTrackingCount, isEmpty, open, open, remove, size, waitForService
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Constructor Details
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WhiteboardServiceTracker
public WhiteboardServiceTracker(WhiteboardManager contextManager, org.osgi.framework.BundleContext bundleContext, String filterExpr) Create a new tracker- Parameters:
contextManager
- The context managerbundleContext
- The bundle context.filterExpr
- The filter expression for the services to track
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Method Details
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close
public void close() -
addingService
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modifiedService
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removedService
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getServiceInfo
protected abstract WhiteboardServiceInfo<T> getServiceInfo(org.osgi.framework.ServiceReference<T> ref) Implemented by sub classes to create the correct whiteboard service info object.- Parameters:
ref
- The service reference- Returns:
- A whiteboard service info
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