Class BoundJoinVALUESConversionIteration
- java.lang.Object
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- org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<T>
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- org.eclipse.rdf4j.common.iteration.ConvertingIteration<BindingSet,BindingSet>
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- org.eclipse.rdf4j.federated.evaluation.iterator.BoundJoinVALUESConversionIteration
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- All Implemented Interfaces:
AutoCloseable
,Iterator<BindingSet>
,CloseableIteration<BindingSet>
public class BoundJoinVALUESConversionIteration extends ConvertingIteration<BindingSet,BindingSet>
Inserts original bindings into the result. This implementation is used for bound joins with VALUES clauses, seeSparqlFederationEvalStrategyWithValues
.It is assumed the the query results contain a binding for "?__index" which corresponds to the index in the input mappings. See
QueryStringUtil
for details- Since:
- 3.0
- Author:
- Andreas Schwarte
- See Also:
SparqlFederationEvalStrategy
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Field Summary
Fields Modifier and Type Field Description protected List<BindingSet>
bindings
static String
INDEX_BINDING_NAME
The binding name for the index
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Constructor Summary
Constructors Constructor Description BoundJoinVALUESConversionIteration(CloseableIteration<BindingSet> iter, List<BindingSet> bindings)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected BindingSet
convert(BindingSet bIn)
Converts a source type object to a target type object.-
Methods inherited from class org.eclipse.rdf4j.common.iteration.ConvertingIteration
handleClose, 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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Field Detail
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INDEX_BINDING_NAME
public static final String INDEX_BINDING_NAME
The binding name for the index- See Also:
- Constant Field Values
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bindings
protected final List<BindingSet> bindings
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Constructor Detail
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BoundJoinVALUESConversionIteration
public BoundJoinVALUESConversionIteration(CloseableIteration<BindingSet> iter, List<BindingSet> bindings)
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Method Detail
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convert
protected BindingSet convert(BindingSet bIn) throws QueryEvaluationException
Description copied from class:ConvertingIteration
Converts a source type object to a target type object.- Specified by:
convert
in classConvertingIteration<BindingSet,BindingSet>
- Throws:
QueryEvaluationException
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