Class GraphToBindingSetConversionIteration
- java.lang.Object
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- org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<BindingSet,QueryEvaluationException>
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- org.eclipse.rdf4j.federated.evaluation.iterator.GraphToBindingSetConversionIteration
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- All Implemented Interfaces:
AutoCloseable
,CloseableIteration<BindingSet,QueryEvaluationException>
,Iteration<BindingSet,QueryEvaluationException>
public class GraphToBindingSetConversionIteration extends AbstractCloseableIteration<BindingSet,QueryEvaluationException>
Converts graph results into a binding set iteration- Author:
- Andreas Schwarte
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Field Summary
Fields Modifier and Type Field Description protected GraphQueryResult
graph
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Constructor Summary
Constructors Constructor Description GraphToBindingSetConversionIteration(GraphQueryResult graph)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected BindingSet
convert(Statement st)
boolean
hasNext()
Returns true if the iteration has more elements.BindingSet
next()
Returns the next element in the iteration.void
remove()
Removes from the underlying collection the last element returned by the iteration (optional operation).-
Methods inherited from class org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration
close, handleClose, isClosed
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Field Detail
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graph
protected final GraphQueryResult graph
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Constructor Detail
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GraphToBindingSetConversionIteration
public GraphToBindingSetConversionIteration(GraphQueryResult graph)
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Method Detail
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hasNext
public boolean hasNext() throws QueryEvaluationException
Description copied from interface:Iteration
Returns true if the iteration has more elements. (In other words, returns true ifIteration.next()
would return an element rather than throwing a NoSuchElementException.)- Returns:
- true if the iteration has more elements.
- Throws:
QueryEvaluationException
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next
public BindingSet next() throws QueryEvaluationException
Description copied from interface:Iteration
Returns the next element in the iteration.- Returns:
- the next element in the iteration.
- Throws:
QueryEvaluationException
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remove
public void remove() throws QueryEvaluationException
Description copied from interface:Iteration
Removes from the underlying collection the last element returned by the iteration (optional operation). This method can be called only once per call to next.- Throws:
QueryEvaluationException
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convert
protected BindingSet convert(Statement st)
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