Comments on: OSGi Declarative Services

By: Wolfgang Lux

Wolfgang Lux — Tue, 27 Apr 2010 11:42:53 +0000

As I understand the example, the activator
1. creates a DictionaryService instance
2. registers the DictionaryService
3. adds itself as service listener for Dictionary
4. gets a reference to the DictionaryService instance using the service tracker it created before

Is there a real need for the service tracker?
If yes: why is there no need for the tracker methods addingService and removedService?
My idea: Is this an example, to be split into several bundles, later?

By: Chris Aniszczyk

Chris Aniszczyk — Thu, 05 Nov 2009 22:37:50 +0000

Luke, what’s the status of the org.eclipse.equinox.ds bundle?

And, in the MANIFEST.MF of your bundle providing the component.xml, is it listed via the Service-Component header?

You can start Equinox with -Dequinox.ds.print=true to hep with debugging DS issues

By: Luke Patterson

Luke Patterson — Thu, 05 Nov 2009 21:55:01 +0000

Had same problem as Gary, services not being registered, dropped to console and ran “services” (Equinox), the service in question doesn’t show up until I start the service-containing bundle. Any ideas?

By: Gary

Gary — Tue, 16 Jun 2009 20:30:33 +0000

Ok.. So i did some digging and see the DS templates in 3.5.. I’ll have to get the latest 3.5 RC installed!

One other question though related to the example above.. When I read the above it says to me that I don’t need the Activator code to register the service.. I can’t seem to get that to work.. If I include just the DS xml file (and it’s reference in the manifest) my service does not get registered (at least the other service which is listening for it doesn’t get notified).. But if I include code in the Activator to register the service my “listener” gets notified of thru it’s “bind” method.. So am I reading this wrong or do I still need the Activator code to register the service?

Thanks!
Gary

By: Gary

Gary — Tue, 16 Jun 2009 19:23:51 +0000

What version of Eclipse(DS) is the template available? I’m running 3.4 and I don’t see the template..

Thanks!
Gary

By: Chris Aniszczyk

Chris Aniszczyk — Fri, 15 May 2009 14:19:24 +0000

Sure, let’s do a ECF distributed OSGi example building on this one.

Let’s save it for a blog post next week

By: Scott

Scott — Tue, 12 May 2009 18:10:28 +0000

Cool Chris…I see you separated out the Dictionary from the provider…thanks. Now…should we add a Distributed Dictionary template? Also…could you point me at the new dictionary example template source?