Re: [Virtuoso-users] jena provider instead of rdf4j provider

2017-11-21 Thread Hugh Williams
Hi Henrik, The jena code can be simplified to the following to give an equivalent execution to rdf4j: String query = "select ."; VirtuosoQueryExecution vqe = VirtuosoQueryExecutionFactory.create(query, virtGraph); Best Regards Hugh Williams Professional Services OpenLink Software, Inc.

Re: [Virtuoso-users] Two questions

2017-11-21 Thread Hugh Williams
Hi Daniel, A possible solution to this problem would be to use the Virtuoso Delta aware bulk load option which requires the use of NQUAD datasets as detailed at: http://vos.openlinksw.com/owiki/wiki/VOS/VirtRDFBulkLoaderWithDelete

[Virtuoso-users] jena provider instead of rdf4j provider

2017-11-21 Thread Henrik Schmidt
Hi, what is a comaparable jena provider query to this rdf4j provider query ? TupleQuery tupleQuery = connection.prepareTupleQuery(QueryLanguage.SPARQL, query); I want to use the jena provider instead and I'm using this threaded so it must be connection based. My current jena implementation is u

[Virtuoso-users] Two questions

2017-11-21 Thread Davis, Daniel (NIH/NLM) [C]
I am seeking to develop a new way to load updated/changed data into my Virtuoso graph. The current way I use involves a lot of churn - I load an NTriples file representing the data into an updates graph, and I delete all old triples and copy all new triples if the subject (owl:Thing) appears i

Re: [Virtuoso-users] Two questions

2017-11-21 Thread Davis, Daniel (NIH/NLM) [C]
I wish also to clarify - I won't have blank nodes in any of the graphs I am considering, at least for now. From: Davis, Daniel (NIH/NLM) [C] Sent: Monday, November 20, 2017 4:04 PM To: virtuoso-users@lists.sourceforge.net Subject: Two questions I am seeking to develop a new way to load updated/c