Class IteratingTupleQueryResult

java.lang.Object

org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<BindingSet>

org.eclipse.rdf4j.common.iteration.IterationWrapper<BindingSet>

org.eclipse.rdf4j.query.impl.IteratingTupleQueryResult

All Implemented Interfaces:

AutoCloseable, Iterable<BindingSet>, Iterator<BindingSet>, CloseableIteration<BindingSet>, QueryResult<BindingSet>, TupleQueryResult

Direct Known Subclasses:

BackgroundTupleResult

public class IteratingTupleQueryResult
extends IterationWrapper<BindingSet>
implements TupleQueryResult

An iterating implementation of the TupleQueryResult interface.

Field Summary

Fields inherited from class IterationWrapper

wrappedIter

Modifier and Type	Field	Description
protected final CloseableIteration<? extends BindingSet>	wrappedIter	Deprecated. This will be changed to private, possibly with an accessor in future.

Fields inherited from interface CloseableIteration

EMPTY_STATEMENT_ITERATION

Modifier and Type	Field	Description
static final EmptyIteration<Statement>	EMPTY_STATEMENT_ITERATION

Constructor Summary

Constructors

Constructor	Description
IteratingTupleQueryResult(List<String> bindingNames, Iterable<? extends BindingSet> bindingSets)	Creates a query result object with the supplied binding names.
IteratingTupleQueryResult(List<String> bindingNames, Iterator<? extends BindingSet> bindingSetIter)
IteratingTupleQueryResult(List<String> bindingNames, CloseableIteration<? extends BindingSet> bindingSetIter)	Creates a query result object with the supplied binding names.

Method Summary

Modifier and Type	Method	Description
List<String>	getBindingNames()	Gets the names of the bindings, in order of projection.

Methods inherited from class IterationWrapper

handleClose, hasNext, next, remove

Modifier and Type	Method	Description
protected void	handleClose()	Deprecated. Closes this Iteration and also closes the wrapped Iteration if it is a CloseableIteration.
boolean	hasNext()	Deprecated. Checks whether the wrapped Iteration contains more elements, closing this Iteration when this is not the case.
BindingSet	next()	Deprecated. Returns the next element from the wrapped Iteration.
void	remove()	Deprecated. Removes the last element that has been returned from the wrapped Iteration.

Methods inherited from class AbstractCloseableIteration

close, isClosed

Modifier and Type	Method	Description
final void	close()	Calls AbstractCloseableIteration.handleClose() upon first call and makes sure the resource closures are only executed once.
final boolean	isClosed()	Checks whether this CloseableIteration has been closed.

Methods inherited from class Object

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

Methods inherited from interface Iterable

forEach, spliterator

Methods inherited from interface Iterator

forEachRemaining

Methods inherited from interface QueryResult

hasNext, iterator, next, stream

Modifier and Type	Method	Description
boolean	hasNext()	Returns true if the query result has more elements.
default Iterator<BindingSet>	iterator()
BindingSet	next()	Returns the next element in the query result.
default Stream<BindingSet>	stream()	Convert the result elements to a Java Stream.

Constructor Details

IteratingTupleQueryResult

public IteratingTupleQueryResult(List<String> bindingNames,
 Iterable<? extends BindingSet> bindingSets)

Creates a query result object with the supplied binding names. The supplied list of binding names is assumed to be constant; care should be taken that the contents of this list doesn't change after supplying it to this solution.

Parameters:

bindingNames - The binding names, in order of projection.

IteratingTupleQueryResult

public IteratingTupleQueryResult(List<String> bindingNames,
 Iterator<? extends BindingSet> bindingSetIter)

IteratingTupleQueryResult

public IteratingTupleQueryResult(List<String> bindingNames,
 CloseableIteration<? extends BindingSet> bindingSetIter)

Creates a query result object with the supplied binding names. The supplied list of binding names is assumed to be constant; care should be taken that the contents of this list doesn't change after supplying it to this solution.

Parameters:

bindingNames - The binding names, in order of projection.

Method Details

getBindingNames

public List<String> getBindingNames()
                             throws QueryEvaluationException

Description copied from interface: TupleQueryResult

Gets the names of the bindings, in order of projection.

Specified by:

getBindingNames in interface TupleQueryResult

Returns:

The binding names, in order of projection.

Throws:

QueryEvaluationException