So it means we have to use DatatypeProperty, ObjecttypeProperty instead of just Property etc? I still confuse, if we used OntModel, we should use DatatypeProperty or OntProperty?
On Mon, Sep 26, 2016 at 12:19 PM, Lorenz Buehmann < buehm...@informatik.uni-leipzig.de> wrote: > Nothing is "saved as annotations". Without using explicit OWL types, the > OWL API - which is quite strict - > > is not able to determine the type of a property, thus, it's treated as > annotation property. and according to the OWL 2 specs, entities have to > be typed explicitly. > > > On 26.09.2016 19:26, kumar rohit wrote: > > May I know why this occurs usually (save data as Annotations)? I wonder > > what mistake I have actually done to encounter this.? > > > > > > On Mon, Sep 26, 2016 at 10:22 AM, kumar rohit <kumar.en...@gmail.com> > wrote: > > > >> Hello Dave, I have Item as data type property in my Protege ontology. > >> > >> On Mon, Sep 26, 2016 at 9:28 AM, Dave Reynolds < > dave.e.reyno...@gmail.com> > >> wrote: > >> > >>> On 26/09/16 16:59, kumar rohit wrote: > >>> > >>>> I have already tried this: > >>>> > >>>> DatatypeProperty item= model.getDatatypeProperty(ns+"Item"); > >>>> > >>> If the URI ns+"Item" is not already declared as a DatatypeProperty in > >>> your ontology then you'll need model.createDatatypeProperty so as to > >>> side-effect the model to include the declaration of Item. > >>> > >>> Dave > >>> > >>> > >>> Literal value = model.createTypedLiteral(Some value); > >>>> customer.setPropertyValue(item, value); > >>>> > >>>> On Mon, Sep 26, 2016 at 8:22 AM, Lorenz Buehmann < > >>>> buehm...@informatik.uni-leipzig.de> wrote: > >>>> > >>>> Please try to use the Apache Jena documentations first, most things > are > >>>>> pretty much explained there [1] > >>>>> > >>>>>> I am sorry my problem still exists and some values are stored as > data > >>>>>> property and some still as "Annotations" though I used the same > >>>>>> procedure > >>>>>> for all. > >>>>>> > >>>>>> OntResource res=model.createOntResource(ns+ value); //value come > from > >>>>>> > >>>>> java > >>>>> > >>>>>> variable > >>>>>> > >>>>>> OntProperty price= model.getOntProperty(ns+"ItemPrice"); > >>>>>> > >>>>> I don't understand why you still do not use a typed OWL property > here, > >>>>> as I said in my previous answer?... > >>>>> OWL has object property and data property, thus, why don't you call > >>>>> > >>>>> model.getDatatypeProperty(ns+"ItemPrice") > >>>>> > >>>>> For object properties the same: > >>>>> model.getObjectProperty(String uri) > >>>>> > >>>>> [1] https://jena.apache.org/documentation/ontology/# > ontology-properties > >>>>> > >>>>>> customer.setPropertyValue(price, res); > >>>>>> > >>>>>> On Mon, Sep 26, 2016 at 5:20 AM, Lorenz B. < > >>>>>> buehm...@informatik.uni-leipzig.de> wrote: > >>>>>> > >>>>>> Yes, in that case it is supposed to be an RDF property, thus not > typed > >>>>>>> as expected to be in an OWL ontology. > >>>>>>> > >>>>>>>> I used OntModel as model to read the ontology but used Property > >>>>>>>> instead > >>>>>>>> > >>>>>>> of > >>>>>>> > >>>>>>>> OntProperty, is this an issue? > >>>>>>>> > >>>>>>>> On Mon, Sep 26, 2016 at 4:34 AM, Lorenz B. < > >>>>>>>> buehm...@informatik.uni-leipzig.de> wrote: > >>>>>>>> > >>>>>>>> For Protege it MUST be an OWL data property, otherwise the OWL API > >>>>>>>>> parser will treat it as OWL annotation property. This has to be > >>>>>>>>> explicitly declared in the ontology, the easiest way in Jena > would > >>>>>>>>> be > >>>>>>>>> > >>>>>>>> to > >>>>>> use an OntModel > >>>>>>>>> Yes Lorenz sir I have written it to disk but it writes the data > in > >>>>>>>>> the > >>>>>> Annotations tab rather than in the data property. > >>>>>>>>>> Customer1.setPropertyValue(price, pricevalue); > >>>>>>>>>> Customer1.setPropertyValue(quantity, value); > >>>>>>>>>> > >>>>>>>>>> I want to write as data property values. > >>>>>>>>>> > >>>>>>>>>> On Sun, Sep 25, 2016 at 7:35 AM, Lorenz B. < > >>>>>>>>>> buehm...@informatik.uni-leipzig.de> wrote: > >>>>>>>>>> > >>>>>>>>>> Ehm, did you write the model to disk? Without seeing any code > it's > >>>>>>>>>> like > >>>>>>>> to try a shot in the dark. > >>>>>>>>>>> Customer1.setPropertyValue(price, pricevalue); > >>>>>>>>>>>> Customer1.setPropertyValue(quantity, value); > >>>>>>>>>>>> > >>>>>>>>>>>> Next time after login as Customer1, previous data has not > >>>>>>>>>>>> > >>>>>>>>>>> overwritten > >>>>>> and > >>>>>>>>>> the owl file shows me old data also.. > >>>>>>>>>>>> On Sun, Sep 25, 2016 at 4:16 AM, Lorenz B. < > >>>>>>>>>>>> buehm...@informatik.uni-leipzig.de> wrote: > >>>>>>>>>>>> > >>>>>>>>>>>> Please learn to read the Javadoc [1] if you're programming in > >>>>>>>>>>>> Java... > >>>>>>>> And using an IDE would also help, usually this is able to show you > >>>>>>>>>>>> the > >>>>>>>> arguments and it's expected types. > >>>>>>>>>>>>> > >>>>>>>>>>>>> [1] > >>>>>>>>>>>>> https://jena.apache.org/documentation/javadoc/jena/ > >>>>>>>>>>>>> org/apache/jena/ontology/OntResource.html > >>>>>>>>>>>>> > >>>>>>>>>>>>> I used this: customer.setPropertyValue(property, > >>>>>>>>>>>>> pricevariable); > >>>>>>>>>>>>>> property here is property name:Item price and pricevariable > is > >>>>>>>>>>>>>> > >>>>>>>>>>>>> int > >>>>>> value > >>>>>>>>>>>> but it gives me error of : > >>>>>>>>>>>>>> *int can not be converted to RDF Node* > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> On Sat, Sep 24, 2016 at 8:29 AM, Dave Reynolds < > >>>>>>>>>>>>>> > >>>>>>>>>>>>> dave.e.reyno...@gmail.com> > >>>>>>>>>>>>> > >>>>>>>>>>>>>> wrote: > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> On 24/09/16 15:37, kumar rohit wrote: > >>>>>>>>>>>>>>> Thanks Soroka and Dave, but how I can do it dynamically? I > >>>>>>>>>>>>>>>> used > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>> this > >>>>>>>>>> Property property=model.getProperty(name space+ "Item > >>>>>>>>>>>>>>> price"); > >>>>>> and then customer_1.addLiteral(property, Text Field value); > >>>>>>>>>>>>>>>> Now how to remove previously entered values? Any built-in > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>> methods? > >>>>>>>> Read my message again, I gave you the name of a method that does > >>>>>>>>>>>>>> the > >>>>>>>> replacement (= remove + add) in one go. > >>>>>>>>>>>>>>> The javadoc and documentation tutorials will help you find > the > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>> many > >>>>>>>> remove > >>>>>>>>>>>>>> methods that are available. > >>>>>>>>>>>>>>> Dave > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>>> On Sat, Sep 24, 2016 at 6:48 AM, A. Soroka < > >>>>>>>>>>>>>>> aj...@virginia.edu> > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>> wrote: > >>>>>>>>>>>> Remove the old triple and add a new one with the new value. > >>>>>>>>>>>>>>>>> --- > >>>>>>>>>>>>>>>>> A. Soroka > >>>>>>>>>>>>>>>>> The University of Virginia Library > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> On Sep 24, 2016, at 9:33 AM, kumar rohit < > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> kumar.en...@gmail.com > >>>>>> wrote: > >>>>>>>>>>>>>> I want to save item price entered by users in file. Samsung > >>>>>>>>>>>>>>>>> Galaxy > >>>>>>>>>> hasPrice > >>>>>>>>>>>>>>>>> ?value. > >>>>>>>>>>>>>>>>>> User enter some value and it is stored in the file. > After > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> some > >>>>>> time, > >>>>>>>>>>>> another price for same Samsung Galaxy is entered and it is > >>>>>>>>>>>>>>>>> stored. > >>>>>>>>>> But > >>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>> problem is that the old price is also there. > >>>>>>>>>>>>>>>>>> How can I overwrite the previous values with recently > >>>>>>>>>>>>>>>>>> entered > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> value > >>>>>>>>>> so > >>>>>>>>>>>>>> that > >>>>>>>>>>>>>>>>> my ontology save and shows one value at a time. > >>>>>>>>>>>>>>>>>> -- > >>>>>>>>>>>>> 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 > >>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>> -- > >>>>>>>>> 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 > >>>>>>> > >>>>>>> > >>>>>>> > >>>>> > >
