Class FilteringIteration
- java.lang.Object
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- org.eclipse.rdf4j.common.iteration.FilterIteration<BindingSet>
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- org.eclipse.rdf4j.federated.evaluation.iterator.FilteringIteration
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- All Implemented Interfaces:
AutoCloseable
,Iterator<BindingSet>
,CloseableIteration<BindingSet>
public class FilteringIteration extends FilterIteration<BindingSet>
Filters iteration according to specified filterExpr.- Author:
- Andreas Schwarte
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Field Summary
Fields Modifier and Type Field Description protected FilterValueExpr
filterExpr
protected FederationEvalStrategy
strategy
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Constructor Summary
Constructors Constructor Description FilteringIteration(FilterValueExpr filterExpr, CloseableIteration<BindingSet> iter, FederationEvalStrategy strategy)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected boolean
accept(BindingSet bindings)
Tests whether or not the specified object should be returned by this Iteration.protected void
handleClose()
Closes this Iteration and also closes the wrapped Iteration if it is aCloseableIteration
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Methods inherited from class org.eclipse.rdf4j.common.iteration.FilterIteration
close, hasNext, next, remove
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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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filterExpr
protected final FilterValueExpr filterExpr
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strategy
protected final FederationEvalStrategy strategy
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Constructor Detail
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FilteringIteration
public FilteringIteration(FilterValueExpr filterExpr, CloseableIteration<BindingSet> iter, FederationEvalStrategy strategy) throws QueryEvaluationException
- Throws:
QueryEvaluationException
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Method Detail
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accept
protected boolean accept(BindingSet bindings) throws QueryEvaluationException
Description copied from class:FilterIteration
Tests whether or not the specified object should be returned by this Iteration. All objects from the wrapped Iteration pass through this method in the same order as they are coming from the wrapped Iteration.- Specified by:
accept
in classFilterIteration<BindingSet>
- Parameters:
bindings
- The object to be tested.- Returns:
- true if the object should be returned, false otherwise.
- Throws:
QueryEvaluationException
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handleClose
protected final void handleClose()
Description copied from class:FilterIteration
Closes this Iteration and also closes the wrapped Iteration if it is aCloseableIteration
.- Specified by:
handleClose
in classFilterIteration<BindingSet>
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