org.openrdf.sesame.query.rdql
Class RdqlEngine

java.lang.Object
  org.openrdf.sesame.query.rdql.RdqlEngine

public class RdqlEngine

extends Object

QueryEngine for RDQL queries.

Constructor Summary

RdqlEngine(RdfSource rdfSource)
Creates a new QueryEngine that will use the supplied RdfSource for retrieving the data.

Method Summary

void	evaluateQuery(TableQuery tableQuery, TableQueryResultListener tableListener) Evaluates the supplied TableQuery and reports the results to the supplied TableQueryResultListener.
TableQuery	parseQuery(String rdqlQuery) Parses the supplied RDQL query and builds a query model from it.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RdqlEngine

public RdqlEngine(RdfSource rdfSource)

Creates a new QueryEngine that will use the supplied RdfSource for retrieving the data.

Throws:

IllegalArgumentException - If the supplied RdfSource is equal to null.

Method Detail

evaluateQuery

public void evaluateQuery(TableQuery tableQuery,
                          TableQueryResultListener tableListener)
                   throws IOException,
                          QueryEvaluationException

Evaluates the supplied TableQuery and reports the results to the supplied TableQueryResultListener.

Throws:

IOException - If an I/O error occurred during the writing of the results.

QueryEvaluationException - If an error occurred during query evaluation.

parseQuery

public TableQuery parseQuery(String rdqlQuery)
                      throws MalformedQueryException

Parses the supplied RDQL query and builds a query model from it.

Returns:

The query model.

Throws:

MalformedQueryException - If the query was syntactically incorrect.