Class AsyncIteratorDirect
- java.lang.Object
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- org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E>
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- org.eclipse.rdf4j.common.iteration.LookAheadIteration<BindingSet>
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- org.eclipse.rdf4j.query.algebra.evaluation.iterator.AsyncIteratorDirect
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- All Implemented Interfaces:
AutoCloseable
,Iterator<BindingSet>
,CloseableIteration<BindingSet>
@Experimental public class AsyncIteratorDirect extends LookAheadIteration<BindingSet>
- Author:
- HÃ¥vard M. Ottestad
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Constructor Summary
Constructors Constructor Description AsyncIteratorDirect(CloseableIteration<BindingSet> iteration)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static CloseableIteration<BindingSet>
getInstance(QueryEvaluationStep iterationPrepared, BindingSet bindings, QueryEvaluationContext context)
protected BindingSet
getNextElement()
Gets the next element.protected void
handleClose()
Called byAbstractCloseableIteration.close()
when it is called for the first time.-
Methods inherited from class org.eclipse.rdf4j.common.iteration.LookAheadIteration
hasNext, next, remove
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Methods inherited from class org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration
close, isClosed
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.eclipse.rdf4j.common.iteration.CloseableIteration
stream
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Methods inherited from interface java.util.Iterator
forEachRemaining
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Constructor Detail
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AsyncIteratorDirect
public AsyncIteratorDirect(CloseableIteration<BindingSet> iteration) throws QueryEvaluationException
- Throws:
QueryEvaluationException
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Method Detail
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getInstance
public static CloseableIteration<BindingSet> getInstance(QueryEvaluationStep iterationPrepared, BindingSet bindings, QueryEvaluationContext context)
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getNextElement
protected BindingSet getNextElement() throws QueryEvaluationException
Description copied from class:LookAheadIteration
Gets the next element. Subclasses should implement this method so that it returns the next element.- Specified by:
getNextElement
in classLookAheadIteration<BindingSet>
- Returns:
- The next element, or null if no more elements are available.
- Throws:
QueryEvaluationException
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handleClose
protected void handleClose() throws QueryEvaluationException
Description copied from class:AbstractCloseableIteration
Called byAbstractCloseableIteration.close()
when it is called for the first time. This method is only called once on each iteration. By default, this method does nothing.- Specified by:
handleClose
in classAbstractCloseableIteration<BindingSet>
- Throws:
QueryEvaluationException
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