Class ProjectionIterator
- 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.query.algebra.evaluation.iterator.ProjectionIterator
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- All Implemented Interfaces:
AutoCloseable
,Iterator<BindingSet>
,CloseableIteration<BindingSet>
public class ProjectionIterator extends ConvertingIteration<BindingSet,BindingSet>
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Constructor Summary
Constructors Constructor Description ProjectionIterator(Projection projection, CloseableIteration<BindingSet> iter, BindingSet parentBindings, QueryEvaluationContext context)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected BindingSet
convert(BindingSet sourceBindings)
Converts a source type object to a target type object.static BindingSet
project(ProjectionElemList projElemList, BindingSet sourceBindings, BindingSet parentBindings)
static BindingSet
project(ProjectionElemList projElemList, BindingSet sourceBindings, BindingSet parentBindings, boolean includeAllParentBindings)
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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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Constructor Detail
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ProjectionIterator
public ProjectionIterator(Projection projection, CloseableIteration<BindingSet> iter, BindingSet parentBindings, QueryEvaluationContext context) throws QueryEvaluationException
- Throws:
QueryEvaluationException
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Method Detail
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convert
protected BindingSet convert(BindingSet sourceBindings) 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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project
public static BindingSet project(ProjectionElemList projElemList, BindingSet sourceBindings, BindingSet parentBindings)
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project
public static BindingSet project(ProjectionElemList projElemList, BindingSet sourceBindings, BindingSet parentBindings, boolean includeAllParentBindings)
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