[FELIX-132] Integrate SCR with Felix

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: framework-0.8.0
• Fix Version/s: scr-1.0.0
• Component/s: Declarative Services (SCR)
• Environment: org.apache.felix.scr project, Rev. 427625
• Assignee: Richard S. Hall
• Reporter: Felix Meschberger
• Created: 30/Aug/06 09:35
• Updated: 30/May/08 18:15
• Resolved: 06/Sep/06 19:03

Description

Currently any bundle wanting to contribute components has to implement an Activator extending the GenericActivator (or refer to the GenericActivator in
the Manifest.MF. Additionally start/stop semantics of the SCR bundle are not implemented.

Attached is a patch, which enhances the current Activator class as follows:

• On start load components of active bundles
• On stop unload all loaded components
• listen for bundle state changes to load/unload components:
• on BundleEvent.STARTED: Components are loaded
• on BundleEvent.STOPPING: Components are unloaded

The BundleContext instance needed to load the Components is retrieved using the BundleImpl.getContext() method, which is accessed through reflection on the bundle instance.

As a consequence of this patch, the GenericActivator class may be rebuilt into a proper component loader and need not be used as an activator for component bundles.