Eclipse does only support the DS 1.2 spec and this was added in a later version. if you are running in a DS 1.3 environment you have to add it manually to the xml and cannot use the annotations. Discussion is under way to add the functionality in Eclipse 4.7
Kind Regards Jens From: osgi-dev-boun...@mail.osgi.org [mailto:osgi-dev-boun...@mail.osgi.org] On Behalf Of Thomas Driessen Sent: Thursday, March 02, 2017 2:01 PM To: OSGi Developer Mail List Subject: Re: [osgi-dev] Updating service properties at runtime Thank you both for your answers. Is it possible to directly annotate a reference with the minimum cardinality, or do I have to do this via ConfigurationAdmin? In Eclipse autocomplete only shows the property cardinality which expects a ReferenceCardinality (OPTIONAL, MANDATORY, etc.) 112.6.2.2 in the specification also only talks about how to adress this property via ConfigurationAdmin. Kind regards, Thomas ------ Originalnachricht ------ Von: "Dirk Fauth" <dirk.fa...@gmail.com<mailto:dirk.fa...@gmail.com>> An: "OSGi Developer Mail List" <osgi-dev@mail.osgi.org<mailto:osgi-dev@mail.osgi.org>> Gesendet: 02.03.2017 13:37:21 Betreff: Re: [osgi-dev] Updating service properties at runtime You can find an example in one of my blog posts. http://blog.vogella.com/2016/09/26/configuring-osgi-declarative-services/ At the bottom the usage of the minimum cardinality reference property is shown. Am 02.03.2017 1:07 PM schrieb "Carsten Ziegeler" <cziege...@apache.org<mailto:cziege...@apache.org>>: You can do this with DS, have a look at section 112.6.2.2 Minimum Cardinality Property Regards Carsten Thomas Driessen wrote > Hi, > > I currently have the following usecase: > > Service A depends on Service B > Service B depends on 4x Service C > Service A may only become active when Service B has exactly 4x Service > C, thus becoming active itself. > > I'm using declarative services which only support 0-*, 1-*, 0-1 and > exactly 1 dependencies between services. > > One idea I came up with, was to count the C services in B's setC(C c) > method and, on reaching the count of 4, setting a specific property on B > (e.g. weirdUsecaseIsActive = true) and let A's reference to B filter > with a corresponding target filter. > > I know this sound like a dirty hack, but I did not found any better > solutions. > > Therefore, my questions are: > 1) Is there a better solution for my usecase? > 2) If not: How do I update properties of a service at runtime? > > Kind regards, > Thomas > > > _______________________________________________ > OSGi Developer Mail List > osgi-dev@mail.osgi.org<mailto:osgi-dev@mail.osgi.org> > https://mail.osgi.org/mailman/listinfo/osgi-dev > -- Carsten Ziegeler Adobe Research Switzerland cziege...@apache.org<mailto:cziege...@apache.org> _______________________________________________ OSGi Developer Mail List osgi-dev@mail.osgi.org<mailto:osgi-dev@mail.osgi.org> https://mail.osgi.org/mailman/listinfo/osgi-dev
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