public StardogQueryResult(StardogStore store, ISparqlQuery query, StardogResultHandler resultHandler)
{
_resultHandler = resultHandler;
string s = null;
string p = null;
string o = null;
if (query.ProvidesStatements())
{
// A list of global scope variables without the ?. Used to access the
// subject, predicate and object variable in statement providing queries.
string[] vars = query.GetGlobalScopeVariableNames();
s = vars[0];
p = vars[1];
o = vars[2];
}
_query = query;
if (_resultHandler.SparqlResultSet != null)
{
_tripleProvider = new SparqlResultSetTripleProvider(_resultHandler.SparqlResultSet, s, p, o);
}
_model = query.Model;
_resultHandler = resultHandler;
_store = store;
}
/// <summary>
/// Executes a <c>SparqlQuery</c> on the store.
/// </summary>
/// <param name="query">SPARQL query string to be executed.</param>
/// <param name="transaction">An optional transaction.</param>
/// <returns></returns>
public StardogResultHandler ExecuteQuery(string query, ITransaction transaction = null)
{
Log?.Invoke(query);
StardogResultHandler resultHandler = new StardogResultHandler();
_connector.Query(_rdfHandler, resultHandler, query);
return(resultHandler);
}
/// <summary>
/// Executes a <c>SparqlQuery</c> on the store.
/// </summary>
/// <param name="query">SPARQL query to be executed.</param>
/// <param name="transaction">An optional transaction.</param>
/// <returns></returns>
public override ISparqlQueryResult ExecuteQuery(ISparqlQuery query, ITransaction transaction = null)
{
string q = query.ToString();
Log?.Invoke(q);
StardogResultHandler resultHandler = new StardogResultHandler();
_connector.Query(_rdfHandler, resultHandler, q, query.IsInferenceEnabled);
return(new StardogQueryResult(this, query, resultHandler));
}