org.openrdf.sesame.query.rql
Class RqlEngine

java.lang.Object
  org.openrdf.sesame.query.rql.RqlEngine

public class RqlEngine

extends Object

QueryEngine for RQL queries.

Constructor Summary

RqlEngine(RdfSchemaSource rss)
Creates a new QueryEngine that will use the supplied RdfSchemaSource for retrieving the data.

Method Summary

void	evaluateQuery(Query query, TableQueryResultListener resList) Evaluates the supplied Query and reports the results to the supplied TableQueryResultListener.
Query	parseQuery(String rqlQuery) Parses the supplied RQL 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

RqlEngine

public RqlEngine(RdfSchemaSource rss)

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

Throws:

IllegalArgumentException - If the supplied RdfSchemaSource is equal to null.

Method Detail

evaluateQuery

public void evaluateQuery(Query query,
                          TableQueryResultListener resList)
                   throws IOException,
                          QueryEvaluationException

Evaluates the supplied Query 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 Query parseQuery(String rqlQuery)
                 throws MalformedQueryException

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

Returns:

The query model.

Throws:

MalformedQueryException - If the query was syntactically incorrect.