Hello all, Would like to make a follow up question on this issue..
If I create these "literals" in the RELS-EXT datastream and would like to use them as constraints in an iTQL query - is that possible? Will they be indexed by Mulgara (in Fedora-Commons)? Something like: select $child $parent $status from <#ri> where $child <fedora-rels-ext:isPartOf> $parent and $child <kb:status> $status If not - is there a way to configure the Mulgara instance in Fedora to make these kind of iTQL constraints possible? //Bengt --------------------------------------------------------- Bengt Neiss Kungl. Biblioteket / National Library of Sweden Phone: +46 (0)10 709 35 41 > -----Ursprungligt meddelande----- > Från: Stephen Bayliss [mailto:stephen.bayl...@acuityunlimited.net] > Skickat: den 4 januari 2012 11:07 > Till: 'Support and info exchange list for Fedora users.' > Ämne: Re: [fcrepo-user] Properties within RELS-EXT? > > And to add it's also valid to have URIs as objects of the triples in addition > to > literals. > > I'd recommend that you create the properties in your own namespace rather > than using properties in one of the Fedora namespaces. > > Steve > > > -----Original Message----- > > From: aj...@virginia.edu [mailto:aj...@virginia.edu] > > Sent: 03 January 2012 17:07 > > To: Support and info exchange list for Fedora users. > > Subject: Re: [fcrepo-user] Properties within RELS-EXT? > > > > > > If by "properties" you simply mean RDF triples with literal objects, > > it is certainly fine to do that in Fedora 3.x. > > > > Keep in mind that in your example below, you are making "kb:timestamp" > > and "kb:status" assertions about the _object_ "info:fedora/kb:33001", > > _not_ about the rel:isConstituentOf _relation_ between > > "info:fedora/kb:33001" and "info:fedora/kb:33000". Making assertions > > about a relationship would require some affordance roughly equivalent > > in expressive power to RDF reification, which is not a base capability > > of the Fedora RI at this time. > > > > --- > > A. Soroka > > Online Library Environment > > the University of Virginia Library > > > > On Jan 3, 2012, at 4:24 AM, Bengt Neiss wrote: > > > > > Hello > > > > > > I just want to check if it is allowed or "not recommended" > > to create > > > "properties" within the RELS-EXT datastream? We have done something > > > similar to this in a Fedora 2.x repository but will now > > start to use > > > Fedora 3.5 (probably). The idea is to be able to create > > relations that are valid within a specific timeframe. > > > > > > Something like the following: > > > > > > <rdf:RDF> > > > <rdf:Description rdf:about="info:fedora/kb:33001"> > > > <rel:isConstituentOf rdf:resource="info:fedora/kb:33000"/> > > > <kb:timestamp>123456789</kb:timestamp> > > > <kb:status>active</kb:status> > > > </rdf:Description> > > > </rdf:RDF> > > > > > > > > > > > > > > > > > > > > > Happy New Year everyone! > > > > > > //Bengt > > > > > > > > > --------------------------------------------------------- > > > Bengt Neiss > > > Kungl. Biblioteket / National Library of Sweden > > > Phone: +46 (0)10 709 35 41 > > > > > > > > ---------------------------------------------------------------------- > > > -------- > > > Write once. Port to many. > > > Get the SDK and tools to simplify cross-platform app > > development. Create > > > new or port existing apps to sell to consumers worldwide. > > Explore the > > > Intel AppUpSM program developer > > opportunity.appdeveloper.intel.com/join > > > > > http://p.sf.net/sfu/intel-appdev______________________________ > _________________ > > Fedora-commons-users mailing list > > Fedora-commons-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/fedora-commons-users > > > ---------------------------------------------------------------------------- > -- > Write once. Port to many. > Get the SDK and tools to simplify cross-platform app development. Create > new or port existing apps to sell to consumers worldwide. Explore the Intel > AppUpSM program developer opportunity. appdeveloper.intel.com/join > http://p.sf.net/sfu/intel-appdev > _______________________________________________ > Fedora-commons-users mailing list Fedora-commons- > us...@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/fedora-commons-users > > > ------------------------------------------------------------------------------ > Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex > infrastructure or vast IT resources to deliver seamless, secure access to > virtual desktops. With this all-in-one solution, easily deploy virtual > desktops > for less than the cost of PCs and save 60% on VDI infrastructure costs. Try it > free! http://p.sf.net/sfu/Citrix-VDIinabox > _______________________________________________ > Fedora-commons-users mailing list > Fedora-commons-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/fedora-commons-users ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Fedora-commons-users mailing list Fedora-commons-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/fedora-commons-users