Demonstrate how to create an OSGIActor that uses a tracker to monitor service instances
it depends on. In the example we are listening to the instance of an JMS ConnectionFactory,
which is further qualified with 'activemq' as the provider property. All we do in the
example is print out a message when the service instance is added, removed or modified.
Demonstrate how to create an OSGIActor that uses a tracker to monitor service instances it depends on. In the example we are listening to the instance of an JMS ConnectionFactory, which is further qualified with 'activemq' as the provider property. All we do in the example is print out a message when the service instance is added, removed or modified.