[Virtuoso-users] fix for jena provider in 6.1 release

VirtResSetIter.java:filterDrop was: public ExtendedIterator filterDrop (final Filter f) { return new FilterIterator (null, this); } This created a FilterIterator with a null filter (leading to nullpointerexceptions in some obscure usage scenarios). A corrected (imo) version is: public Ext

Re: [Virtuoso-users] RDF View Mapping Question...

Yes, including that directive also did not help until I mapped the primary key as one of the properties. On Fri, Mar 26, 2010 at 7:32 AM, Ivan Mikhailov wrote: > Hello Jesse, > > On Thu, 2010-03-25 at 16:30 -0400, Jesse Sightler wrote: > > I am continuing to evaluate the R

[Virtuoso-users] RDF View Mapping: Crossing a Join Table

I'm currently trying to traverse a join table as follows: sparql prefix testrdfview: create quad storage testrdfview:graph from "testrdfview"."DBA"."vehicle" as vehicle_tbl from "testrdfview"."DBA"."driver" as driver_tbl from "testrdfview"."DBA"."vehicl

Re: [Virtuoso-users] RDF View Mapping Question...

vehicle_tbl.vehicleName as testrdfview:dba-vehicle-name . } } ; Apparently mapping is only possible if the primary key is mapped as one of the triples. :) Thanks, Jess On Thu, Mar 25, 2010 at 4:30 PM, Jesse Sightler wrote: > I am continuing to evaluate the RDF View mapping capabilities of Virtuoso. >

[Virtuoso-users] RDF View Mapping Question...

I am continuing to evaluate the RDF View mapping capabilities of Virtuoso. The whitepaper on the subject is useful, but I'm still having issues manually generating a mapping (needed in our case, as we want to match a specific vocabulary). Given a sample table: create table "testrdfview"."DBA"."v

[Virtuoso-users] Custom RDF -> SQL Table Mapping

I see that the process of generating an RDF view on an existing SQL-based table structure is generated by a mapping file. Is the mapping process documented? Ie, how difficult would it be to generate a mapping by hand based upon custom requirements? Thanks, Jess

[Virtuoso-users] Support for Jena 2.6.2...

The currently available jena wrapper seems to lack support for Jena 2.6.2. Are there any plans to correct this?

[Virtuoso-users] Hibernate Identity Column Handling...

Using the SQL Server dialect results in a SQL error with tables that use auto-generated ids... similarly using "hibernate.jdbc.use_get_generated_keys" simply indicates that PreparedStatement.getGeneratedKeys() is unimplemented. Is there a fully supported virtuoso dialect that can handle autogenera

Re: [Virtuoso-users] Undefined Procedure with GIS/Geospatial on Virtuoso 6.1 OSS edition...

enabled RDF view. Are these things possible with the existing version of Virtuoso? Thanks, Jess On Wed, Feb 24, 2010 at 5:01 PM, Kingsley Idehen wrote: > Nathan wrote: > >> Jesse Sightler wrote: >> >> >>> I'm attempting to enable geospatial support for a d

[Virtuoso-users] Undefined Procedure with GIS/Geospatial on Virtuoso 6.1 OSS edition...

I'm attempting to enable geospatial support for a db that will support both SQL and RDF views. All the spatial apis appear to be missing, though: SQL> select st_point (0, 52); *** Error 42001: [OpenLink][Virtuoso ODBC Driver][Virtuoso Server]SR185: Undefined procedure db.DBA.st_point. at line 16