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 >>>>>>> >>>>>>> >>>>>>> >>>>>
