Ok thx a lot :) I will implement a way to map a java object model to tripples :)
2014/1/29 Jean-Marc Vanel <[email protected]> > For your convenience, I pasted together the first lines of both API > mentioned: > > // Make a TDB-backed dataset > String directory = "MyDatabases/Dataset1" ; > Dataset dataset = TDBFactory.createDataset(directory) ; > dataset.begin(ReadWrite.READ) ; > // Get model inside the transaction > Model model = dataset.getDefaultModel(); > //// paste from basic RDF API > Model model2 = ModelFactory.createDefaultModel(); > > String inputFileName = "f"; > // use the FileManager to find the input file > InputStream in = FileManager.get().open( inputFileName ); > if (in == null) { > throw new IllegalArgumentException( > "File: " + inputFileName + " not found"); > } > > // read the RDF/XML file > model2.read(in, null); > * model.add(model2);* > //////// > dataset.end(); > > > 2014-01-29 Jean-Marc Vanel <[email protected]> > > > Cher Frédéric, > > > > You just have to use the basic RDF API : > > http://jena.apache.org/tutorials/rdf_api.html > > > > with the TDB API : > > http://jena.apache.org/documentation/tdb/java_api.html > > > > Note that "update nodes" is not the right wording for what happens. > > An RDF model is bascally a collection of triples. > > So adding > > <a> <p> <o2> . > > > > to a model that contains already: > > <a> <p> <o1> . > > > > will not "update" <a> ; > > there is just one more triples having <a> as subject. > > > > > > > > 2014-01-29 Frederic Toublanc <[email protected]> > > > > Hello there, > >> > >> Here is my question. > >> > >> I have an existing TDB containing triples. > >> I have a RDF file and i want to update the existing TDB with the data > >> contained in the RDF file. > >> If nodes already exist they should be updated and new data added. > >> > >> Is it possible to do it with the Jena API ? > >> > > > > > > > > -- > > Jean-Marc Vanel > > Déductions SARL - Consulting, services, training, > > Rule-based programming, Semantic Web > > http://deductions-software.com/ > > +33 (0)6 89 16 29 52 > > Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui > > > > > > -- > Jean-Marc Vanel > Déductions SARL - Consulting, services, training, > Rule-based programming, Semantic Web > http://deductions-software.com/ > +33 (0)6 89 16 29 52 > Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui >
