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,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)voidclose()protected abstract WhiteboardServiceInfo<T>getServiceInfo(org.osgi.framework.ServiceReference<T> ref)Implemented by sub classes to create the correct whiteboard service info object.voidmodifiedService(org.osgi.framework.ServiceReference<T> ref, org.osgi.framework.ServiceReference<T> service)voidremovedService(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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