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Re: [dotNetRDF-Support] Adding Context to Triples
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From: Yossi C. <yos...@li...> - 2013-01-17 10:37:43
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Hey Rob, In my case, I use the context slot for what is called 'direct reification'.This means that each and every triple has a unique context.All my triples are held on the same (default) graph (including triples that describe them). For example:s1: (s1, p1, o1, ctx1)s2: (s2, p2, o2, ctx2)s3: (ctx1, :createdby o3, ctx3) // s3 describing s1s4: (ctx1, :score "0.7", ctx4) // s4 describing s1s5: (ctx2, :createdby o4, ctx5) // s5 describing s2 I need to be able to attach context to triples such that when saving the triples to the backend store, I'll be able to save also triples that describe them (i.e., assert triple-context entries as triples with the context slot as a subject) Is there a way to extend dotNetRDF in order to achieve this?(I use SesameHttpProtocolConnection over BigData backend) Best, Yossi. Date: Thu, 17 Jan 2013 10:04:56 +0000 From: rv...@do... To: dot...@li... Subject: Re: [dotNetRDF-Support] Adding Context to Triples Hey Yossi Yes the Context property of the Triple class is not persisted, also that will eventually be removed in future versions of the library as that is somewhat defunct. To do what you want to do with dotNetRDF you will essentially have to create named graphs, and then store statements about those named graphs in some other graph e.g. Graph g = new Graph();g.BaseUri = context;g.Assert(s, p, o); Graph h = new Graph();h.Assert(context, p1, o1);h.Assert(context, p2, o2); You can then persist all your graphs to your Sesame store. Hope this helps, Rob From: Yossi Cohen <yos...@li...> Reply-To: dotNetRDF User Help and Support <dot...@li...> Date: Tuesday, January 15, 2013 7:37 PM To: DotNetRDF mailing-list <dot...@li...> Subject: [dotNetRDF-Support] Adding Context to Triples Hi, Is there a way to attach a context uri to triples such that it would be stored in the triple (quad) store?I need to use the context slot for what is called 'direct reification':assert (s, p, o, c) // mother statementassert (c, p1, o1) // statement about mother statementassert (c, p2, o2) // another one...I'm using the Ontology API as well as the Grpah/Node/Triple APII've noticed the context of the Triple class, but this is not saved to the underline graph.(I should note that I'm using BigData store using SesameHttpConnector.) Thanks,Yossi. ------------------------------------------------------------------------------ Master SQL Server Development, Administration, T-SQL, SSAS, SSIS, SSRS and more. Get SQL Server skills now (including 2012) with LearnDevNow - 200+ hours of step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only - learn more at: http://p.sf.net/sfu/learnmore_122512_______________________________________________ dotNetRDF-Support mailing list dot...@li... https://lists.sourceforge.net/lists/listinfo/dotnetrdf-support ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_122712 _______________________________________________ dotNetRDF-Support mailing list dot...@li... https://lists.sourceforge.net/lists/listinfo/dotnetrdf-support |
