Felix' support for fragments should be good in 1.8.x and is actually passing the TCK in the trunk build...I won't claim it is without bugs, though. :-)
I am not convinced the fragments are the best way to do this, but I agree that it is a workable approach. Using META-INF/services is not great in OSGi, largely due to its design. The most common approach, as mentioned, is to use the extender pattern where you probe bundles for META-INF/services and then inject them were appropriate. However, as pointed out, this can be problematic if the code getting injected doesn't ever expect those to go away, which can happen with a bundle. To follow a more OSGi-like approach you can have the extender just register services for each META-INF/services object (or directly create wrapper bundles for each that does this). Then you could have a wrapper bundle for the core that listens for the appropriate services in the OSGi registry and injects them appropriately. This way, you only need to have OSGi API in the wrappers/extender, not in the core or the extensions. Of course, dynamism is still an issue here. Not sure if such an approach is possible here, but some thoughts... -> richard (Apache Felix) ------------------------------------------------------ http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2382917
