Hello List,first of all happy new year to everyone! Because i feel i learn the most from examples i was wondering if any of you had any information or could...
Roger, Here's an simple blog app that uses jena and the jenabean binding util at http://jenabean.googlecode.com/svn/trunk/example/ It's a java servlet...
Here are some tips I can share regarding jena api usage. These are perhaps obvious and apparent to the jena team, but I had a little trouble with them so...
Jena's typed literal support uses Calendar (which I suppose is to ensure good time zone support). Here's how I save a date... Date d = new Date(); Calendar c...
Dear jena-dev, [[ wishing you all a happy new year ]] I think that a method listRootSubjects() in the Model interface makes great sense when applications...
First of all, I want to thanks anyone will help me!!!! Here is my problem: I try to use Jena to build a system that can read an RDF and keep a decision to...
... The trouble is that in general RDF data forms a graph not a tree (nor a lattice) so there may be connected subgraphs without any root subjects. That limits...
... "null" is wrong here. I think you mean you want a wildcard which will match any node, in which case just use a variable. Also you don't want the property...
http://jena.s3.amazonaws.com/simple.owl please pardon me if this is a recuring misunderstanding, I did search the NG for "listDeclaredProperties" and cannot...
Hi Taylor, ... No, I don't think you've characterised it correctly. The issue is not OWL or Protege, but union class expressions. You don't say if you are ...
Thanks Ian,you are right...I am not using a reasoner. It might have been a mistake to even let us get at instances of OntModel without the basic entailments,...
Thanks Dave, but my problem persists. I don't want the property to be a variable but if I try with this rule : (?any vCard:Pcode ?x) equal(?x, ' 5 ') ->...
The prefix vCard has not been set. I don't know how to set a prefix in a rule set. As temporary workaround, you may replace vCard: with the full namespace ...
... That error says that the prefix "vCard" hasn't been declared. So the solution is to declare it. If your rules are in a file then declare the prefix in the...
Hi! I'm using Jena framework to load and work with an ontology. My workflow consist in creating some individuals, classifying them with Pellet Reasoner and...
... You should ask on the Pellet list for info on when Pellet does and doesn't cache results. The rule reasoner will certainly make repeated queries to the...
To Dave & Adrian : Thanks guys, now I'm going to understand somethings!!! ____________________________________________________________________________________ ...
I took a look at Taylor's Jenabean project http://code.google.com/p/jenabean/ and I think he is onto something. Perhaps because I have done the same thing...
Hi all, I still try to optimize my application. I hope someone will be able to give me some advices. I run 3 queries: Q1 : SELECT ?email WHERE { ?email...
To explain a little more : Q1 is only sent to Lucene Q2 is only sent to SDB Q3 is sent both to Lucene and SDB Bruno ... into the ... single ... the DB a ... ...
http://www.thewebsemantic.com/2008/01/05/jena-ruby-bindings-accessing-jenas-feature-rich-rdf-api-from-ruby/ In my first jena/ruby post I demonstrated using the...
Hi all. I have a problem with my Ontology files. I have a large Ontology instances file (called A) and a schema Ontology file (called B) which is imported by A...
I have a large OWL file that I need to parse using the Jena model. I am getting the error: Input is large. Any hints ? Thank you. Best Regards -- Zeina...
Hi all, I do have a few 'newbie' questions about how to modelize best an owl ontology so it can be effectively used with Jena. If there is a better forum for...
... take ... First, sorry to take so much time to answer you... but I had some health problems... now it's fine So, like you already sayed to me in an other...
Hello, Has anyone tried to use Oracle 11g as an large-scale RDF store (more then 3 million)? Any Performance / Maintenance comments/recommendations? Eran...
Hi all, I have another problem with my Rules.I try with success this rule on my RDf model (?any vCard:Pcode ?x) equal(?x, '5') -> print('something') and now...
... Please send more details. It is very helpful if you give the exact error message you get, complete with stack trace if there is one. Also it is helpful if...
... I suspect Zeina's getting the message in: src/com/hp/hpl/jena/rdf/arp/impl/ParserSupport.java viz: "Input is large. Switching off checking for illegal...
... sorry for delay in reply, I had extra holiday :) ... Lines 1597 onwards of com.hp.hpl.jena.xmloutput.impl.Unparser.java essentially implement that idea...
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