org.ops4j.pax.wicket.internal
Class DefaultContentTracker

java.lang.Object
  org.osgi.util.tracker.ServiceTracker
      org.ops4j.pax.wicket.internal.DefaultContentTracker

All Implemented Interfaces:

org.osgi.util.tracker.ServiceTrackerCustomizer

public final class DefaultContentTracker
extends org.osgi.util.tracker.ServiceTracker

DefaultContentTracker tracks ContentSource services.

Since:

1.0.0

Author:

Edward Yakop

Field Summary

Fields inherited from class org.osgi.util.tracker.ServiceTracker

context, filter

Constructor Summary

DefaultContentTracker(org.osgi.framework.BundleContext context, ContentTrackingCallback callback, java.lang.String applicationName, java.lang.String aggregationPointName)
Construct an instance of DefaultContentTracker with the specified arguments.

Method Summary

java.lang.Object	addingService(org.osgi.framework.ServiceReference serviceReference) Adding service.
void	close() Close the tracker.
void	removedService(org.osgi.framework.ServiceReference serviceReference, java.lang.Object object) Handle removed service.

Methods inherited from class org.osgi.util.tracker.ServiceTracker

finalize, getService, getService, getServiceReference, getServiceReferences, getServices, getTrackingCount, modifiedService, open, open, remove, size, waitForService

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultContentTracker

public DefaultContentTracker(org.osgi.framework.BundleContext context,
                             ContentTrackingCallback callback,
                             java.lang.String applicationName,
                             java.lang.String aggregationPointName)
                      throws java.lang.IllegalArgumentException

Construct an instance of DefaultContentTracker with the specified arguments.

Parameters:

context - The bundle context. This argument must not be null.

callback - The callback. This argument must not be null.

applicationName - The application name. This argument must not be null or empty.

aggregationPointName - The aggregation id. This argument must not be null or empty.

Throws:

java.lang.IllegalArgumentException - Thrown if one or some or all arguments are null.

Since:

1.0.0

Method Detail

close

public final void close()

Close the tracker. This method assumes that all ContentSource that are stored by invoking ContentTrackingCallback.addContent(String,ContentSource) has been freed.

Overrides:

close in class org.osgi.util.tracker.ServiceTracker

Since:

1.0.0

addingService

public final java.lang.Object addingService(org.osgi.framework.ServiceReference serviceReference)

Adding service.

Specified by:

addingService in interface org.osgi.util.tracker.ServiceTrackerCustomizer

Overrides:

addingService in class org.osgi.util.tracker.ServiceTracker

Since:

1.0.0

See Also:

ServiceTracker.addingService(ServiceReference)

removedService

public void removedService(org.osgi.framework.ServiceReference serviceReference,
                           java.lang.Object object)

Handle removed service.

Specified by:

removedService in interface org.osgi.util.tracker.ServiceTrackerCustomizer

Overrides:

removedService in class org.osgi.util.tracker.ServiceTracker

Since:

1.0.0

See Also:

ServiceTracker.removedService(ServiceReference,Object)