Querying

Querying with SPARQL

Executing SPARQL Queries:

import org.apache.jena.query.Query;
import org.apache.jena.query.QueryExecution;
import org.apache.jena.query.QueryExecutionFactory;
import org.apache.jena.query.QueryFactory;
import org.apache.jena.query.ResultSet;
import org.apache.jena.query.ResultSetFormatter;

public class QueryExample {
    public static void main(String[] args) {
        String queryString = "SELECT ?s ?p ?o WHERE { ?s ?p ?o }";
        Query query = QueryFactory.create(queryString);
        try (QueryExecution qexec = QueryExecutionFactory.create(query, model)) {
            ResultSet results = qexec.execSelect();
            ResultSetFormatter.out(System.out, results, query);
        }
    }
}

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