Class QueryEvaluationStep.DelayedEvaluationIteration
- java.lang.Object
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- org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E,X>
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- org.eclipse.rdf4j.common.iteration.DelayedIteration<BindingSet,QueryEvaluationException>
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- org.eclipse.rdf4j.query.algebra.evaluation.QueryEvaluationStep.DelayedEvaluationIteration
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- All Implemented Interfaces:
AutoCloseable
,CloseableIteration<BindingSet,QueryEvaluationException>
,Iteration<BindingSet,QueryEvaluationException>
- Enclosing interface:
- QueryEvaluationStep
public static class QueryEvaluationStep.DelayedEvaluationIteration extends DelayedIteration<BindingSet,QueryEvaluationException>
Utility class that removes code duplication and makes a precompiled QueryEvaluationStep available as an iteration that may be created and used later.
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Constructor Summary
Constructors Constructor Description DelayedEvaluationIteration(QueryEvaluationStep arg, BindingSet bs)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected Iteration<? extends BindingSet,? extends QueryEvaluationException>
createIteration()
Creates the iteration that should be iterated over.-
Methods inherited from class org.eclipse.rdf4j.common.iteration.DelayedIteration
handleClose, hasNext, next, remove
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Methods inherited from class org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration
close, isClosed
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Constructor Detail
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DelayedEvaluationIteration
public DelayedEvaluationIteration(QueryEvaluationStep arg, BindingSet bs)
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Method Detail
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createIteration
protected Iteration<? extends BindingSet,? extends QueryEvaluationException> createIteration() throws QueryEvaluationException
Description copied from class:DelayedIteration
Creates the iteration that should be iterated over. This method is called only once, when the iteration is first needed.- Specified by:
createIteration
in classDelayedIteration<BindingSet,QueryEvaluationException>
- Throws:
QueryEvaluationException
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