it.unibz.inf.ontop.answering.connection.impl

Class SQLQuestStatement

java.lang.Object

it.unibz.inf.ontop.answering.connection.impl.QuestStatement

it.unibz.inf.ontop.answering.connection.impl.SQLQuestStatement

All Implemented Interfaces:

OBDAStatement, OntopStatement, AutoCloseable

public class SQLQuestStatement
extends QuestStatement

SQL-specific implementation of OBDAStatement. Derived from QuestStatement.

Constructor Summary

Constructors

Constructor and Description

SQLQuestStatement(it.unibz.inf.ontop.answering.reformulation.QueryReformulator queryProcessor, Statement sqlStatement, it.unibz.inf.ontop.answering.reformulation.input.InputQueryFactory inputQueryFactory, it.unibz.inf.ontop.model.term.TermFactory termFactory, it.unibz.inf.ontop.model.type.TypeFactory typeFactory, org.apache.commons.rdf.api.RDF rdfFactory, it.unibz.inf.ontop.substitution.SubstitutionFactory substitutionFactory, OntopSystemSQLSettings settings)

Method Summary

Modifier and Type	Method and Description
protected void	cancelExecution()
void	close()
protected BooleanResultSet	executeBooleanQuery(it.unibz.inf.ontop.iq.IQ executableQuery)
protected SimpleGraphResultSet	executeGraphQuery(it.unibz.inf.ontop.answering.reformulation.input.ConstructQuery inputQuery, it.unibz.inf.ontop.iq.IQ executableQuery, boolean collectResults)
protected TupleResultSet	executeSelectQuery(it.unibz.inf.ontop.iq.IQ executableQuery)
int	getFetchSize()
int	getMaxRows()
void	getMoreResults()
int	getQueryTimeout()
int	getTupleCount(it.unibz.inf.ontop.answering.reformulation.input.InputQuery inputQuery) Returns the number of tuples returned by the query
boolean	isClosed()
void	setFetchSize(int rows)
void	setMaxRows(int max)
void	setQueryTimeout(int seconds)

Methods inherited from class it.unibz.inf.ontop.answering.connection.impl.QuestStatement

cancel, execute, getExecutableQuery, getRewritingRendering, isCanceled

Methods inherited from class java.lang.Object

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

Constructor Detail

SQLQuestStatement

public SQLQuestStatement(it.unibz.inf.ontop.answering.reformulation.QueryReformulator queryProcessor,
                         Statement sqlStatement,
                         it.unibz.inf.ontop.answering.reformulation.input.InputQueryFactory inputQueryFactory,
                         it.unibz.inf.ontop.model.term.TermFactory termFactory,
                         it.unibz.inf.ontop.model.type.TypeFactory typeFactory,
                         org.apache.commons.rdf.api.RDF rdfFactory,
                         it.unibz.inf.ontop.substitution.SubstitutionFactory substitutionFactory,
                         OntopSystemSQLSettings settings)

Method Detail

getFetchSize

public int getFetchSize()
                 throws OntopConnectionException

Throws:

OntopConnectionException

getMaxRows

public int getMaxRows()
               throws OntopConnectionException

Throws:

OntopConnectionException

getMoreResults

public void getMoreResults()
                    throws OntopConnectionException

Throws:

OntopConnectionException

setFetchSize

public void setFetchSize(int rows)
                  throws OntopConnectionException

Throws:

OntopConnectionException

setMaxRows

public void setMaxRows(int max)
                throws OntopConnectionException

Throws:

OntopConnectionException

setQueryTimeout

public void setQueryTimeout(int seconds)
                     throws OntopConnectionException

Throws:

OntopConnectionException

getQueryTimeout

public int getQueryTimeout()
                    throws OntopConnectionException

Throws:

OntopConnectionException

isClosed

public boolean isClosed()
                 throws OntopConnectionException

Throws:

OntopConnectionException

getTupleCount

public int getTupleCount(it.unibz.inf.ontop.answering.reformulation.input.InputQuery inputQuery)
                  throws OntopReformulationException,
                         OntopQueryEvaluationException

Returns the number of tuples returned by the query

Throws:

OntopReformulationException

OntopQueryEvaluationException

close

public void close()
           throws OntopConnectionException

Throws:

OntopConnectionException

cancelExecution

protected void cancelExecution()
                        throws OntopQueryEvaluationException

Specified by:

cancelExecution in class QuestStatement

Throws:

OntopQueryEvaluationException

executeBooleanQuery

protected BooleanResultSet executeBooleanQuery(it.unibz.inf.ontop.iq.IQ executableQuery)
                                        throws OntopQueryEvaluationException

Specified by:

executeBooleanQuery in class QuestStatement

Throws:

OntopQueryEvaluationException

executeSelectQuery

protected TupleResultSet executeSelectQuery(it.unibz.inf.ontop.iq.IQ executableQuery)
                                     throws OntopQueryEvaluationException

Specified by:

executeSelectQuery in class QuestStatement

Throws:

OntopQueryEvaluationException

executeGraphQuery

protected SimpleGraphResultSet executeGraphQuery(it.unibz.inf.ontop.answering.reformulation.input.ConstructQuery inputQuery,
                                                 it.unibz.inf.ontop.iq.IQ executableQuery,
                                                 boolean collectResults)
                                          throws OntopQueryEvaluationException,
                                                 OntopResultConversionException,
                                                 OntopConnectionException

Specified by:

executeGraphQuery in class QuestStatement

Throws:

OntopQueryEvaluationException

OntopResultConversionException

OntopConnectionException