Ok guys thank you all! Sorry but I'm new to Jena and Semantic web applications and I'm trying to figure out how things works.
2016-03-04 11:43 GMT+01:00 Andy Seaborne <[email protected]>: > > Is it possible to get prefix mapping from remote graph in Jena? > > I think there is some confusion over a "remote" graph here. > > With the standard SPARQL protocols, you can either query a remote endpoint > or fetch a remote graph - SPARQL Graph Store Protocol (and dataset FWIW). > > DatasetAccessor is the graph store protocol engine. It transfers graph by > syntax. Whether the prefixes are available depends on what the remote end > sends. > > If it sends Turtle, with the prefixes then parsing that will cause the > prefixes to be set, if it's N-triples, no prefixes. > > Any thing else is outside the standards so is not going to work against an > arbitrary remote data source. > > Prefixes/namespaces ("namespaces" is XML terminology) in RDF are just a > syntactic convenience and the standard protocols don't make them > first-class items. > > Andy >
