Package org.apache.jena.sparql.resultset

Class ResultSetPeeking

java.lang.Object

org.apache.jena.sparql.resultset.ResultSetPeeking

All Implemented Interfaces:

java.util.Iterator<QuerySolution>, org.apache.jena.atlas.lib.Closeable, ResultSet, ResultSetPeekable

public class ResultSetPeeking
extends java.lang.Object
implements ResultSetPeekable, org.apache.jena.atlas.lib.Closeable

A wrapper around another result set that provides peek capabilities

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	warnOnSyncErrors	Controls whether a log warning is printed if someone modifies the underlying result set externally to us

Constructor Summary

Constructors

Constructor	Description
ResultSetPeeking(ResultSet results)	Creates a peeking wrapper around another result set

Method Summary

Modifier and Type	Method	Description
void	close()
Model	getResourceModel()	Get the model that resources are created against - may be null
java.util.List<java.lang.String>	getResultVars()	Get the variable names for the projection.
int	getRowNumber()	Return the "row" number for the current iterator item
boolean	hasNext()	Is there another result?
QuerySolution	next()	Moves onto the next result.
Binding	nextBinding()	Move to the next binding (low level)
QuerySolution	nextSolution()	Moves onto the next result (legacy - use .next()).
QuerySolution	peek()	Peek at the next query solution
Binding	peekBinding()	Peek at the next binding

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Methods inherited from interface org.apache.jena.query.ResultSet

rewindable

Field Detail

warnOnSyncErrors

public static boolean warnOnSyncErrors

Controls whether a log warning is printed if someone modifies the underlying result set externally to us

Constructor Detail

ResultSetPeeking

public ResultSetPeeking(ResultSet results)

Creates a peeking wrapper around another result set

Parameters:

results - Inner results

Method Detail

hasNext

public boolean hasNext()

Description copied from interface: ResultSet

Is there another result?

Specified by:

hasNext in interface java.util.Iterator<QuerySolution>

Specified by:

hasNext in interface ResultSet

next

public QuerySolution next()

Description copied from interface: ResultSet

Moves onto the next result.

Specified by:

next in interface java.util.Iterator<QuerySolution>

Specified by:

next in interface ResultSet

nextSolution

public QuerySolution nextSolution()

Description copied from interface: ResultSet

Moves onto the next result (legacy - use .next()).

Specified by:

nextSolution in interface ResultSet

nextBinding

public Binding nextBinding()

Description copied from interface: ResultSet

Move to the next binding (low level)

Specified by:

nextBinding in interface ResultSet

getRowNumber

public int getRowNumber()

Description copied from interface: ResultSet

Return the "row" number for the current iterator item

Specified by:

getRowNumber in interface ResultSet

getResultVars

public java.util.List<java.lang.String> getResultVars()

Description copied from interface: ResultSet

Get the variable names for the projection. Not all query solutions from a result have every variable defined.

Specified by:

getResultVars in interface ResultSet

getResourceModel

public Model getResourceModel()

Description copied from interface: ResultSet

Get the model that resources are created against - may be null

Specified by:

getResourceModel in interface ResultSet

peek

public QuerySolution peek()

Description copied from interface: ResultSetPeekable

Peek at the next query solution

Specified by:

peek in interface ResultSetPeekable

Returns:

Next solution if available

peekBinding

public Binding peekBinding()

Description copied from interface: ResultSetPeekable

Peek at the next binding

Specified by:

peekBinding in interface ResultSetPeekable

Returns:

Next binding if available

close

public void close()

Specified by:

close in interface org.apache.jena.atlas.lib.Closeable