On 02.11.2016 15:05, tina sani wrote: > The value of employee is either Manager or Technical. When user enter > Manager, I want the query to show instances of Manager class and when > Technical, it will show instances of Technical class.
That is not a useful answer to my response.Please learn to provide detailed information. What is the concrete value? Is it the String "Manager"? Like String employee = "Manager"; If so, your SPARQL query expects the URI of a class, do you understand what I mean? "Manager" is not a URI. And as I said, if you have the URI, you need to put this in between '<' and '>' > And yes, I have used all the prefixes with full URI in my query. I don't understand what you're saying here. Either you use full URIs or you use prefixed URIs and add the prefixes in the beginning of the SPARQL query. > > On Wed, Nov 2, 2016 at 1:02 PM, Lorenz B. < > buehm...@informatik.uni-leipzig.de> wrote: > >> WHAT is a concrete value of the variable 'employee'? >> >> And, full URIs have to be put between '<' and '>' >> >>> Lorenz, this does not work for me: >>> >>> Select * where{?emp rdf:type "+employee+"}"; >>> >>> employee variable is : String employee; have values Manager or Technical >>> depend on user input. >>> >>> On Wed, Nov 2, 2016 at 10:48 AM, Lorenz B. < >>> buehm...@informatik.uni-leipzig.de> wrote: >>> >>>> It should be clear that String concatenation calls the toString() method >>>> of your object. We don't know how this is implemented in your code >> though. >>>>> Will simply putting a variable inside a query work? >>>>> >>>>> {?emp rdf:type "+employee+"}"; >>>>> >>>>> On Tue, Nov 1, 2016 at 6:13 PM, lookman sanni <lookous...@gmail.com> >>>> wrote: >>>>>> Hi Tina, >>>>>> >>>>>> You can have your query stored in a composed java string (e.g. String >>>> query >>>>>> = "Select blablabla where { ?emp rdf:type " + someJavaVariable + "}" >>>>>> >>>>>> Hope that helps >>>>>> Le 1 nov. 2016 17:02, "tina sani" <tinamadri...@gmail.com> a écrit : >>>>>> >>>>>>> Hello. >>>>>>> >>>>>>> How can I use a Java variable in the SPARQL query. >>>>>>> ?emp rdf:type ?SomeVariable >>>>>>> >>>>>>> I want rdf:type of Managers and Technicals while these two >>>>>> values(Managers >>>>>>> and Technicals) are in my Java variable: employee. >>>>>>> >>>>>>> So I need something like: >>>>>>> >>>>>>> ?emp rdf:type "employee" >>>>>>> >>>>>>> Regards >>>>>>> >>>> -- >>>> Lorenz Bühmann >>>> AKSW group, University of Leipzig >>>> Group: http://aksw.org - semantic web research center >>>> >>>> >> -- >> Lorenz Bühmann >> AKSW group, University of Leipzig >> Group: http://aksw.org - semantic web research center >> >>