Jena TDB to store and query using API

Question

I am new to both Jena-TDB and SPARQL, so it might be a silly question. I am using tdb-0.9.0, on Windows XP.

I am creating the TDB model for my trail_1.rdf f

Answer 1

The problem in your part 1 code is, I think, you are not committing the data .

Try with this version of your part 1 code:

   String directory = "D:\\Project\\Store_DB\\data1\\tdb";
   Dataset dataset = TDBFactory.createDataset(directory);

   Model tdb = dataset.getDefaultModel();

   // read the input file
   String source = "D:\\Project\\Store_DB\\tmp\\trail_1.rdf";
   FileManager.get().readModel( tdb, source);

   dataset.commit();//INCLUDE THIS STAMEMENT

   tdb.close();
   dataset.close();

and then try with your part 3 code :) ....