Quick follow up... I moved my code to the .tpl file, selected the dataset I wished to use... and it all works swimmingly (HA HA). Seriously though, all seems to be good and I am getting much better results. Thanks
On Sun, Aug 4, 2013 at 6:25 PM, Lewis John Mcgibbney < [email protected]> wrote: > Hi Andy, > > On Fri, Aug 2, 2013 at 3:25 AM, Andy Seaborne <[email protected]> wrote: > >> https://issues.apache.org/**jira/browse/JENA-497<https://issues.apache.org/jira/browse/JENA-497> >> > > You've hit the nail right on the head here. > > >> >> The issue is that you are using sparql.html -- "General SPARQL Service" >> on the front page. >> > > Yes, this is the form that I have amended to pull my front end together. I > drag and drop queries... which is all working quite nicely. > > >> It is a form to send a query to the server which is not associated with >> any datasets. > > > And this causes the NPE. > > >> You have to use "Target graph URI" or put FROM NAMED? in query and the >> server will load the data for that query only. >> > > OK so using the *sparql.tpl* form I write the following query > > > PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> > PREFIX mheq: < > http://eil.stanford.edu:443/svn/eil-repo/Users/Lewis/ontology/MaterialHandlingEquipment.owl# > > > DESCRIBE ?individual > FROM NAMED <MaterialHandlingEquipment.owl> > > WHERE { > ?individual rdf:type mheq:BeltConveyor. > } > > Which works fine, I get my results. > > @prefix : <http://www.owl-ontologies.com/Ontology1357168977.owl#> . > @prefix protege: <http://protege.stanford.edu/plugins/owl/protege#> . > @prefix RemoteI: < > http://eil.stanford.edu:443/svn/eil-repo/Users/Lewis/ontology/MaterialHandlingEquipment.owl#RemoteI/> > . > @prefix xsp: <http://www.owl-ontologies.com/2005/08/07/xsp.owl#> . > @prefix LR_Mate_200iB-200iB: < > http://eil.stanford.edu:443/svn/eil-repo/Users/Lewis/ontology/MaterialHandlingEquipment.owl#LR_Mate_200iB-200iB/3> > . > @prefix mheq: < > http://eil.stanford.edu:443/svn/eil-repo/Users/Lewis/ontology/MaterialHandlingEquipment.owl#> > . > @prefix AssemblyProcess: < > http://eil.stanford.edu:443/svn/eil-repo/Users/Lewis/ontology/AssemblyProcess.owl#> > . > @prefix I: < > http://eil.stanford.edu:443/svn/eil-repo/Users/Lewis/ontology/MaterialHandlingEquipment.owl#I/> > . > @prefix MaterialHandlingEquipment: < > http://eil.stanford.edu:443/svn/eil-repo/Users/Lewis/ontology/MaterialHandlingEquipment.owl#> > . > @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . > @prefix swrl: <http://www.w3.org/2003/11/swrl#> . > @prefix JoiningProcess: < > http://eil.stanford.edu:443/svn/eil-repo/Users/Lewis/ontology/JoiningProcess.owl#> > . > @prefix swrlb: <http://www.w3.org/2003/11/swrlb#> . > @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . > @prefix owl: <http://www.w3.org/2002/07/owl#> . > @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . > > MaterialHandlingEquipment:ModelTA_Horizontal_Belt_Conveyor > a owl:NamedIndividual , > MaterialHandlingEquipment:BeltConveyor ; > rdfs:comment "The ModelTA_Horizontal_Belt_Conveyor individual is > a representation of the product located a > http://www.gilmorekramer.com/more_info/hytrol_ta_conveyor/hytrol_ta_conveyor.shtml. > Data type propoerty associations are made in accordance with the power > calculation methodology located in \"ENERGY MANAGEMENT\nSERIES 17, FOR > INDUSTRY COMMERCE AND INSTITUTIONS, Materials Handling and On-Site > Transportation Equipment, Canada."^^xsd:string ; > MaterialHandlingEquipment:hasCentreToCentreDistanceBetweenRollers > "0.0"^^xsd:double ; > MaterialHandlingEquipment:hasCoefficientOfFriction > "0.3"^^xsd:double ; > MaterialHandlingEquipment:hasConveyorAngleOfIncline > "20.0"^^xsd:double ; > MaterialHandlingEquipment:hasConveyorLength > "30.0"^^xsd:double ; > MaterialHandlingEquipment:hasConveyorProductLoading > "36.0"^^xsd:double ; > MaterialHandlingEquipment:hasConveyorSpeed > "0.508"^^xsd:double ; > MaterialHandlingEquipment:hasConveyorWidthBetweenFrames > "0.84"^^xsd:double . > > I cannot achieve these results from the *sparql.html* form though even > though I specify FROM NAMED in my query. I still get the NPE. > The problem is that I do not know that syntax for the Target Graph URI > e.g. http://localhost:3030/susman/data?graph=... > > *susman is the in memory dataset I used when I started the Fuseki server > - ./fuseki-server --update --mem /susman > > I am nearly there with this one. Some last guidance would be really > appreciated. > Thank you so much. > Lewis > > -- *Lewis*
