So it means there is no method which check if an individual exists or not? On Tue, Sep 6, 2016 at 4:55 AM, John A. Fereira <[email protected]> wrote:
> You could run a query to get a resource with specific criteria (e.g. it > has an rdfs:label which has the users name). If you get a result, replace > the triple which has their GPS, otherwise create a new Student. > > -----Original Message----- > From: neha gupta [mailto:[email protected]] > Sent: Tuesday, September 6, 2016 3:13 AM > To: [email protected] > Subject: Creating individuals if not already exists > > I have created Students individuals in Jena and stored them in a file. > Every time students login, updates their information like GPA and updates > stored in the file. > Student.createIndividual(ns, stdName); > > With this statement, suppose a student Neha is created with her > information in the file. Next time, she login, again a new instance will be > created when the application executes *Student.createIndividual(ns, > stdName);?* > > *Is there any condition which states if the individual not already exists, > create it otherwise skip createIndividual statement?* >
