Now I'm the one that's lost, perhaps because part of clause B) below has been eaten by gremlins.
Suppose that my extender recognises some magic header in your bundle and uses it to generate a Servlet which acts as a plug-in for the Felix web console. Would that be an example? > On Wed, Jun 17, 2015 at 2:44 PM, BJ Hargrave <[email protected]> wrote: > >> So this is like DS (an extender) registering Servlet services on behalf >> of >> a bundle using DS. Then of course the extender bundle does not care >> about >> the servlet package but also the extender bundle is not using >> ServiceTrackers to track the Servlet services. That is done by the Http >> Whiteboard impl bundle which does care about the servlet package and its >> version. >> > > I'm sorry but you've lost me, and DS isn't an example of the scenario > because the DS bundle is itself tracker in this scenario. > > In the scenario I'm describing there are 3 bundles in play: > > A) the whiteboard bundle (has the trackers) > B) an extender which registers services that the whiteboard > C) a bundle which is being extended by B) but doesn't know anything about > A) or the API it's being extended with > > Sincerely, > - Ray > > >> -- >> >> BJ Hargrave >> Senior Technical Staff Member, IBM office: +1 386 848 1781 >> OSGi Fellow and CTO of the OSGi Alliance mobile: +1 386 848 3788 >> [email protected] >> >> >> >> ----- Original message ----- >> From: Raymond Auge <[email protected]> >> Sent by: [email protected] >> To: OSGi Developer Mail List <[email protected]> >> Cc: >> Subject: Re: [osgi-dev] whiteboard pattern & extenders >> Date: Wed, Jun 17, 2015 2:23 PM >> >> But an extender who registers services to a whiteboard impl on behalf of >> extendee will result in those services not being visible to the >> whiteboard >> if the extendee does not import the packages used by the services? >> >> On Wed, Jun 17, 2015 at 2:16 PM, BJ Hargrave <[email protected]> >> wrote: >> >> Well whiteboard and extenders are different. >> >> Whiteboard should not use true since it cares about the specific API >> package version. >> >> Extenders should use BundleTrackers rather than ServiceTrackers since >> they >> are not using whiteboard services. >> >> -- >> >> BJ Hargrave >> Senior Technical Staff Member, IBM office: +1 386 848 1781 >> OSGi Fellow and CTO of the OSGi Alliance mobile: +1 386 848 3788 >> [email protected] >> >> >> >> ----- Original message ----- >> From: Raymond Auge <[email protected]> >> Sent by: [email protected] >> To: OSGi Developer Mail List <[email protected]> >> Cc: >> Subject: [osgi-dev] whiteboard pattern & extenders >> Date: Wed, Jun 17, 2015 2:12 PM >> >> When implementing a whiteboard pattern should we always open trackers >> using the trackAllServices = true ? via: >> >> ServiceTracker.open(true); >> >> It would seem that this is the only way that we can support extenders >> where the extendee has no knowledge of the APIs in question, correct? >> >> -- >> *Raymond Augé* <http://www.liferay.com/web/raymond.auge/profile> >> (@rotty3000) >> Senior Software Architect *Liferay, Inc.* <http://www.liferay.com> >> (@Liferay) >> Board Member & EEG Co-Chair, OSGi Alliance <http://osgi.org> >> (@OSGiAlliance) >> _______________________________________________ >> OSGi Developer Mail List >> [email protected] >> https://mail.osgi.org/mailman/listinfo/osgi-dev >> >> >> >> _______________________________________________ >> OSGi Developer Mail List >> [email protected] >> https://mail.osgi.org/mailman/listinfo/osgi-dev >> >> >> >> >> -- >> *Raymond Augé* <http://www.liferay.com/web/raymond.auge/profile> >> (@rotty3000) >> Senior Software Architect *Liferay, Inc.* <http://www.liferay.com> >> (@Liferay) >> Board Member & EEG Co-Chair, OSGi Alliance <http://osgi.org> >> (@OSGiAlliance) >> _______________________________________________ >> OSGi Developer Mail List >> [email protected] >> https://mail.osgi.org/mailman/listinfo/osgi-dev >> >> >> >> _______________________________________________ >> OSGi Developer Mail List >> [email protected] >> https://mail.osgi.org/mailman/listinfo/osgi-dev >> > > > > -- > *Raymond Augé* <http://www.liferay.com/web/raymond.auge/profile> > (@rotty3000) > Senior Software Architect *Liferay, Inc.* <http://www.liferay.com> > (@Liferay) > Board Member & EEG Co-Chair, OSGi Alliance <http://osgi.org> > (@OSGiAlliance) > _______________________________________________ > OSGi Developer Mail List > [email protected] > https://mail.osgi.org/mailman/listinfo/osgi-dev _______________________________________________ OSGi Developer Mail List [email protected] https://mail.osgi.org/mailman/listinfo/osgi-dev
