Ive got the latest version of ARQ out of CVS, and run several tests on the data. I've almost come to the conclusion that the problem is with the source data....
... this ... from ... synonyms. ... from ... Could be something like that ... it shouldn't matter provided you do the QueryExecution.close() after all results...
Andy, Ive found that a long string vale causes the null pointer exception on the query. This only appears to happen on MYSQL database models, memory models...
... What's the source? Nothing should crash, ever. The data is in a database (which version of MySQL by the way?) isn't it? But the stacktrace does not...
OK - I can recreate that. I know what's happening : MySQL mediumblob is showing up as JDBC Types.LONGVARBINARY, not JDBC Types.BLOB as the code expects. But...
... I've checked into CVS a version of Jena which logs when the query engine has caught and forwarded an exception, and when the client side's pull has fetched...
... I have checked in a version of jena.jar into *ARQ CVS* (neither code nor binary is in Jena CVS because I'm having some transient CVS merge problems with...
... Joseki 2.1 does not support SPARQL (protocol or query language) Use Joseki3 - despite begin in development cycle, it (a) supports a standard and (b) is...
Dear All, I am building a bridge ontology that maps two owl file ontologies by using owl:sameAs tag. So here is some description: I am interested in mapping...
Believe this may be an issue with the hasNext() method on the listOperands() iterator. To repeat: 1. Create an OWL file with the following structure in it. ...
This of course should refer to the listUnionClasses iterator as in the example, not what my brain told my fingers to type... its Friday afternoon... -DAB ... ...
Hi David, These cases are a bit tricky in our framework. The basic issue, I think ... the bNode can be inferred to have rdf:type owl:Class since it's in the ...
Hi All, Can you suggest some reading material on the internals of JENA & ARQ - Specifically I am looking at when Ontology is loaded in a Jena Model how it is...
Hi All, How does JENA process owl:import tag in an ontology - For .e.g If there are two files a.owl and b.owl and both have owl:import tag c.owl; If we load...
Hi! First: Your attachments are not there! It seems that Yahoo-Groups do not save attachments, though they are mentioned. I suggest that you repost your mail...
Hi, is it possible to store a model splitting it to different files according to specific policies? Suppose I have an ontology A, which imports ontologies B,...
Many thanks, Chris! We've downloaded the latest CVS version, customized it for Oracle, and compiled it, and will test it out in earnest on Monday. Enjoy! ......
Hi, I need help to make a small prototype for part my project. Actually what I want to query the data form any database (Mysql, Oracle, Ms-Access etc) using...
... Actually what I ... etc) ... have ... example or ... or ... KARIM: Yes you can do it through JENA; Look into Persistent Ontology examples given with Jena...
... I wasn't sure exactly what you meant by "query the data form any database": kjindani's answer covers the case of storing RDF/OWL in any database...
Hello All, I create my classes: RDFList unionList = myModel.createList(); OntClass cl1=myModel.createClass("http://cl1"); unionList=unionList.cons(cl1); ...
... Just for the record, D2RQ v0.5 comes with a mapping generator that creates a default mapping. No more need for modelling if that's sufficient for your...
... Thank you for the reply. Unfortunately the workaround did not help: the problem exists also when doFastpath is set off. I'm a newbie in RDF and Jena, and...
Hi Karim, ... Yes. Moreover, if you import c.owl into a.owl, by default it is cached so that if you later create a new model and load d.owl which owl:imports ...
Hi all, I wondered if there is any plan to include java generics [1] in the Jena API: it could then help to learn/use it faster. For example, we could write: ...
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