There is no need for SPARQL Update. Again, I'd suggest to read docs and
tutorial[1].
[1] https://jena.apache.org/tutorials/rdf_api.html
On 01.07.2016 20:47, kumar rohit wrote:
Thank you for your reply.
Is there any need for SPARQL update query or things will be happily done
with Jena code?
thanks
On Fri, Jul 1, 2016 at 1:53 AM, Lorenz B. <
[email protected]> wrote:
When you're modifying the model, all happens in-memory. You have to
write the model back to file, as Andy suggest, there is a good Jena API
tutorial.
I am sorry but I used model.read method but did not mention it in the
code.
I mean the rdf file is readed successfully but still I could not find the
individual when I open the file in Protege.
On Thu, Jun 30, 2016 at 1:51 PM, Andy Seaborne <[email protected]> wrote:
On 30/06/16 21:43, kumar rohit wrote:
I have an rdf file on c:/users/desktop/std.rdf. I have the following
jena
code
which does not read the file.
*String personURI = "c://users/desktop/rohit/std.rdf";*
There is no connection between using a URI and a file. That is just a
string used as a URI. If you change it ... you don't get "file not
found"
* String fullName = "rohit kumar";*
*// create an empty Model*
*Model model = ModelFactory.createDefaultModel();*
Empty model.
*// create the resource*
*Resource res1 = model.createResource(personURI)..addProperty(VCARD.FN,
fullName);*
What happens after this code? Is this save "rohit kumar" in the file
std.rdf?
No.
read the file into a model (RDFDataMgr or model.read), change it, write
it
out again.
See the tutorials.
I can not find this resource after running this code and open the file
in
Protege?
Andy
--
Lorenz Bühmann
AKSW group, University of Leipzig
Group: http://aksw.org - semantic web research center
