Please, please read the Javadocs. StmtIterator listStatements(Resource s, Property p, RDFNode o)
returns a StmtIterator, an iterator of _Statements_. ResIterator listResourcesWithProperty(Property p, RDFNode o) returns a ResIterator, an iterator of _Resources_. Neither of the examples you give are sensible code. The literal "Student" is not a reasonable value for an rdf:type. Please go and actually try to write some code for your problem and then continue this discussion. --- A. Soroka The University of Virginia Library > On Dec 29, 2016, at 9:16 AM, neha gupta <neha.bang...@gmail.com> wrote: > > What is the difference between then in > "model.listresourceswithproperty(RDF:type, > Student )" and > > model.listStatements(null,RDF.type, "Student"); //Student is class in our > ontology > > If we want to just retrieve the list of Students (rdf:type Student), which > of the above statement is correct? Or we should write both these > statements. > > Regards > > On Thu, Dec 29, 2016 at 5:00 PM, A. Soroka <aj...@virginia.edu> wrote: > >> No. The "resources in this model that have property p": the resource that >> has a property is the subject of that property. >> >> --- >> A. Soroka >> The University of Virginia Library >> >>> On Dec 29, 2016, at 8:57 AM, neha gupta <neha.bang...@gmail.com> wrote: >>> >>> Hi Soroka, it will lists both the subjects and objects of the Property p, >>> right? >>> >>> >>> >>> On Thu, Dec 29, 2016 at 4:29 PM, A. Soroka <aj...@virginia.edu> wrote: >>> >>>> Please consult the Javadocs. >>>> >>>> https://jena.apache.org/documentation/javadoc/jena/ >>>> org/apache/jena/rdf/model/Model.html#listResourcesWithProperty-org. >>>> apache.jena.rdf.model.Property- >>>> >>>> "Answer an iterator [with no duplicates] over all the resources in this >>>> model that have property p. remove() is not implemented on this >> iterator." >>>> >>>> --- >>>> A. Soroka >>>> The University of Virginia Library >>>> >>>>> On Dec 29, 2016, at 8:23 AM, neha gupta <neha.bang...@gmail.com> >> wrote: >>>>> >>>>> Hello, I want to ask what is the function of this method: >>>>> listresourceswithproperty() >>>>> >>>>> And is it the same as when we query SPARQL like: >>>>> >>>>> Select ?x >>>>> where { ?x rdf:type ?someclass } >>>>> >>>>> A simple example is highly appreciated as I did not find any solid >>>> examples >>>>> on web about it. >>>>> >>>>> Thank you >>>> >>>> >> >>
