Package edu.cornell.mannlib.vitro.webapp.utils.sparqlrunner

Class SparqlQueryRunner

  • public final class SparqlQueryRunner
extends Object
    A conversational tool for handling SPARQL queries. 
     Examples:
   List values = createSelectQueryContext(rdfService, queryString)
                             .bindVariableToUri("uri", uri)
                                               .execute()
                                               .toStringFields("partner")
                                               .flatten();

   QueryHolder qh = queryHolder(queryString)
                             .bindToUri("uri", uri));
   List map = createSelectQueryContext(model, qh)
                             .execute()
                             .toStringFields();
    The query context can come from either an RDFService or a Model. The execute() method does not actually execute the query: it merely sets it up syntactically. If you don't supply any field names to toStringFields(), you get all of them. Any string value that returns a blank or empty string is omitted from the results. Any row that returns no values is omitted from the results.