virtuoso.jena.driver

Class VirtuosoQueryExecution

java.lang.Object

virtuoso.jena.driver.VirtuosoQueryExecution

All Implemented Interfaces:

com.hp.hpl.jena.query.QueryExecution, java.lang.AutoCloseable

public class VirtuosoQueryExecution
extends java.lang.Object
implements com.hp.hpl.jena.query.QueryExecution

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	VirtuosoQueryExecution.VResultSet

Constructor Summary

Constructors

Constructor and Description
VirtuosoQueryExecution(com.hp.hpl.jena.query.Query query, VirtGraph _graph)
VirtuosoQueryExecution(java.lang.String query, VirtGraph _graph)

Method Summary

Methods

Modifier and Type	Method and Description
void	abort()
void	close()
boolean	execAsk()
com.hp.hpl.jena.rdf.model.Model	execConstruct()
com.hp.hpl.jena.rdf.model.Model	execConstruct(com.hp.hpl.jena.rdf.model.Model model)
java.util.Iterator<com.hp.hpl.jena.graph.Triple>	execConstructTriples() Execute a CONSTRUCT query, returning the results as an iterator of Triple.
com.hp.hpl.jena.rdf.model.Model	execDescribe()
com.hp.hpl.jena.rdf.model.Model	execDescribe(com.hp.hpl.jena.rdf.model.Model model)
java.util.Iterator<com.hp.hpl.jena.graph.Triple>	execDescribeTriples() Execute a DESCRIBE query, returning the results as an iterator of Triple.
com.hp.hpl.jena.query.ResultSet	execSelect()
com.hp.hpl.jena.sparql.util.Context	getContext()
com.hp.hpl.jena.query.Dataset	getDataset()
com.hp.hpl.jena.query.Query	getQuery()
long	getTimeout1() Return the first timeout (time to first result), in millseconds: negative if unset
long	getTimeout2() Return the second timeout (overall query execution after first result), in millseconds: negative if unset
boolean	isClosed()
void	setFileManager(com.hp.hpl.jena.util.FileManager arg)
void	setInitialBinding(com.hp.hpl.jena.query.QuerySolution arg)
void	setTimeout(long timeout) Set time, in milliseconds
void	setTimeout(long timeout1, long timeout2) Set time, in milliseconds
void	setTimeout(long timeout, java.util.concurrent.TimeUnit timeoutUnits) Set a timeout on the query execution.
void	setTimeout(long timeout1, java.util.concurrent.TimeUnit timeUnit1, long timeout2, java.util.concurrent.TimeUnit timeUnit2) Set timeouts on the query execution; the first timeout refers to time to first result, the second refers to overall query execution after the first result.

Methods inherited from class java.lang.Object

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

Constructor Detail

VirtuosoQueryExecution

public VirtuosoQueryExecution(com.hp.hpl.jena.query.Query query,
                      VirtGraph _graph)

VirtuosoQueryExecution

public VirtuosoQueryExecution(java.lang.String query,
                      VirtGraph _graph)

Method Detail

execSelect

public com.hp.hpl.jena.query.ResultSet execSelect()

Specified by:

execSelect in interface com.hp.hpl.jena.query.QueryExecution

setFileManager

public void setFileManager(com.hp.hpl.jena.util.FileManager arg)

setInitialBinding

public void setInitialBinding(com.hp.hpl.jena.query.QuerySolution arg)

Specified by:

setInitialBinding in interface com.hp.hpl.jena.query.QueryExecution

getDataset

public com.hp.hpl.jena.query.Dataset getDataset()

Specified by:

getDataset in interface com.hp.hpl.jena.query.QueryExecution

getContext

public com.hp.hpl.jena.sparql.util.Context getContext()

Specified by:

getContext in interface com.hp.hpl.jena.query.QueryExecution

getQuery

public com.hp.hpl.jena.query.Query getQuery()

Specified by:

getQuery in interface com.hp.hpl.jena.query.QueryExecution

execConstruct

public com.hp.hpl.jena.rdf.model.Model execConstruct()

Specified by:

execConstruct in interface com.hp.hpl.jena.query.QueryExecution

execConstruct

public com.hp.hpl.jena.rdf.model.Model execConstruct(com.hp.hpl.jena.rdf.model.Model model)

Specified by:

execConstruct in interface com.hp.hpl.jena.query.QueryExecution

execConstructTriples

public java.util.Iterator<com.hp.hpl.jena.graph.Triple> execConstructTriples()

Execute a CONSTRUCT query, returning the results as an iterator of Triple. Caution: This method may return duplicate Triples. This method may be useful if you only need the results for stream processing, as it can avoid having to place the results in a Model.

Specified by:

execConstructTriples in interface com.hp.hpl.jena.query.QueryExecution

Returns:

An iterator of Triple objects (possibly containing duplicates) generated by applying the CONSTRUCT template of the query to the bindings in the WHERE clause.

execDescribe

public com.hp.hpl.jena.rdf.model.Model execDescribe()

Specified by:

execDescribe in interface com.hp.hpl.jena.query.QueryExecution

execDescribe

public com.hp.hpl.jena.rdf.model.Model execDescribe(com.hp.hpl.jena.rdf.model.Model model)

Specified by:

execDescribe in interface com.hp.hpl.jena.query.QueryExecution

execDescribeTriples

public java.util.Iterator<com.hp.hpl.jena.graph.Triple> execDescribeTriples()

Execute a DESCRIBE query, returning the results as an iterator of Triple. Caution: This method may return duplicate Triples. This method may be useful if you only need the results for stream processing, as it can avoid having to place the results in a Model.

Specified by:

execDescribeTriples in interface com.hp.hpl.jena.query.QueryExecution

Returns:

An iterator of Triple objects (possibly containing duplicates) generated as the output of the DESCRIBE query.

execAsk

public boolean execAsk()

Specified by:

execAsk in interface com.hp.hpl.jena.query.QueryExecution

abort

public void abort()

Specified by:

abort in interface com.hp.hpl.jena.query.QueryExecution

close

public void close()

Specified by:

close in interface com.hp.hpl.jena.query.QueryExecution

Specified by:

close in interface java.lang.AutoCloseable

isClosed

public boolean isClosed()

Specified by:

isClosed in interface com.hp.hpl.jena.query.QueryExecution

setTimeout

public void setTimeout(long timeout,
              java.util.concurrent.TimeUnit timeoutUnits)

Set a timeout on the query execution. Processing will be aborted after the timeout (which starts when the approprate exec call is made). Not all query execution systems support timeouts. A timeout of less than zero means no timeout.

Specified by:

setTimeout in interface com.hp.hpl.jena.query.QueryExecution

setTimeout

public void setTimeout(long timeout)

Set time, in milliseconds

Specified by:

setTimeout in interface com.hp.hpl.jena.query.QueryExecution

See Also:

setTimeout(long, TimeUnit)

setTimeout

public void setTimeout(long timeout1,
              java.util.concurrent.TimeUnit timeUnit1,
              long timeout2,
              java.util.concurrent.TimeUnit timeUnit2)

Set timeouts on the query execution; the first timeout refers to time to first result, the second refers to overall query execution after the first result. Processing will be aborted if a timeout expires. Not all query execution systems support timeouts. A timeout of less than zero means no timeout; this can be used for timeout1 or timeout2.

Specified by:

setTimeout in interface com.hp.hpl.jena.query.QueryExecution

setTimeout

public void setTimeout(long timeout1,
              long timeout2)

Set time, in milliseconds

Specified by:

setTimeout in interface com.hp.hpl.jena.query.QueryExecution

See Also:

setTimeout(long, TimeUnit, long, TimeUnit)

getTimeout1

public long getTimeout1()

Return the first timeout (time to first result), in millseconds: negative if unset

Specified by:

getTimeout1 in interface com.hp.hpl.jena.query.QueryExecution

getTimeout2

public long getTimeout2()

Return the second timeout (overall query execution after first result), in millseconds: negative if unset

Specified by:

getTimeout2 in interface com.hp.hpl.jena.query.QueryExecution