Class WhiteboardServiceTracker<T>
- java.lang.Object
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- org.osgi.util.tracker.ServiceTracker<T,org.osgi.framework.ServiceReference<T>>
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- org.apache.felix.http.base.internal.whiteboard.tracker.WhiteboardServiceTracker<T>
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- 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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Constructor Summary
Constructors Constructor Description WhiteboardServiceTracker(WhiteboardManager contextManager, org.osgi.framework.BundleContext bundleContext, String filterExpr)
Create a new tracker
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description 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.void
modifiedService(org.osgi.framework.ServiceReference<T> ref, org.osgi.framework.ServiceReference<T> service)
void
removedService(org.osgi.framework.ServiceReference<T> ref, org.osgi.framework.ServiceReference<T> service)
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Constructor Detail
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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 Detail
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close
public void close()
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addingService
public final org.osgi.framework.ServiceReference<T> addingService(org.osgi.framework.ServiceReference<T> ref)
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modifiedService
public final void modifiedService(org.osgi.framework.ServiceReference<T> ref, org.osgi.framework.ServiceReference<T> service)
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removedService
public final void removedService(org.osgi.framework.ServiceReference<T> ref, org.osgi.framework.ServiceReference<T> service)
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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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