Class DescribeIteration
java.lang.Object
org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E,X>
org.eclipse.rdf4j.common.iteration.LookAheadIteration<BindingSet,QueryEvaluationException>
org.eclipse.rdf4j.query.algebra.evaluation.iterator.DescribeIteration
- All Implemented Interfaces:
AutoCloseable,CloseableIteration<BindingSet,,QueryEvaluationException> Iteration<BindingSet,QueryEvaluationException>
- Direct Known Subclasses:
FederatedDescribeIteration
@Deprecated(since="4.1.0")
public class DescribeIteration
extends LookAheadIteration<BindingSet,QueryEvaluationException>
Deprecated.
Iteration that implements a simplified version of Symmetric Concise Bounded Description (omitting reified
statements).
- Author:
- Jeen Broekstra
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected BindingSetDeprecated.protected static final StringDeprecated.protected static final StringDeprecated.protected static final StringDeprecated. -
Constructor Summary
ConstructorsConstructorDescriptionDescribeIteration(Iteration<BindingSet, QueryEvaluationException> sourceIter, EvaluationStrategy strategy, Set<String> describeExprNames, BindingSet parentBindings) Deprecated. -
Method Summary
Modifier and TypeMethodDescriptionprotected CloseableIteration<BindingSet,QueryEvaluationException> createNextIteration(Value subject, Value object) Deprecated.protected BindingSetDeprecated.Gets the next element.protected voidDeprecated.Called byAbstractCloseableIteration.close()when it is called for the first time.Methods inherited from class org.eclipse.rdf4j.common.iteration.LookAheadIteration
hasNext, next, removeMethods inherited from class org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration
close, isClosedMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.eclipse.rdf4j.common.iteration.CloseableIteration
stream
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Field Details
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VARNAME_SUBJECT
Deprecated.- See Also:
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VARNAME_PREDICATE
Deprecated.- See Also:
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VARNAME_OBJECT
Deprecated.- See Also:
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parentBindings
Deprecated.
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Constructor Details
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DescribeIteration
public DescribeIteration(Iteration<BindingSet, QueryEvaluationException> sourceIter, EvaluationStrategy strategy, Set<String> describeExprNames, BindingSet parentBindings) Deprecated.
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Method Details
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getNextElement
Deprecated.Description copied from class:LookAheadIterationGets the next element. Subclasses should implement this method so that it returns the next element.- Specified by:
getNextElementin classLookAheadIteration<BindingSet,QueryEvaluationException> - Returns:
- The next element, or null if no more elements are available.
- Throws:
QueryEvaluationException
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createNextIteration
protected CloseableIteration<BindingSet,QueryEvaluationException> createNextIteration(Value subject, Value object) throws QueryEvaluationException Deprecated.- Throws:
QueryEvaluationException
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handleClose
Deprecated.Description copied from class:AbstractCloseableIterationCalled byAbstractCloseableIteration.close()when it is called for the first time. This method is only called once on each iteration. By default, this method does nothing.- Overrides:
handleClosein classLookAheadIteration<BindingSet,QueryEvaluationException> - Throws:
QueryEvaluationException
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