modules/rdf/examples/builder-resource.zzm

Package

NAME

rdf/examples/builder-resource - using RDFBuilder and RDFResource

SYNOPSIS

  from rdf import RDFBuilder, RDFResource, RDFStore, rdf_iri, rdf_type;

  let ex := "http://example.com/";
  let builder := new RDFBuilder();
  builder
    .prefix( "ex", ex )
    .triple( "ex:alice", rdf_type(), "ex:Person" )
    .triple( "ex:alice", "ex:name", builder.literal("Alice") );

  let store := RDFStore.temp();
  store.install_schema();
  builder.add_to(store);

  let alice := new RDFResource(
    store: store,
    term: rdf_iri(ex _ "alice"),
  );
  alice.add( rdf_iri(ex _ "knows"), rdf_iri(ex _ "bob") );

  say alice.value(rdf_iri(ex _ "name")).get_value();