Class MemTripleIterator<X extends Exception>
- java.lang.Object
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- org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E>
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- org.eclipse.rdf4j.common.iteration.LookAheadIteration<MemTriple>
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- org.eclipse.rdf4j.sail.memory.model.MemTripleIterator<X>
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- All Implemented Interfaces:
AutoCloseable
,Iterator<MemTriple>
,CloseableIteration<MemTriple>
public class MemTripleIterator<X extends Exception> extends LookAheadIteration<MemTriple>
An Iteration that can iterate over a list ofTriple
objects.- Author:
- Jeen Broekstra
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Constructor Summary
Constructors Constructor Description MemTripleIterator(MemStatementList statementList, MemResource subject, MemIRI predicate, MemValue object, int snapshot)
Creates a new MemTripleIterator that will iterate over the triples contained in the supplied MemStatementList searching for triples that occur as either subject or object in those statements, and which match the specified pattern of subject, predicate, object.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected MemTriple
getNextElement()
Searches through statementList, starting from index _nextStatementIdx + 1, for triples that match the constraints that have been set for this iterator.protected void
handleClose()
Called byAbstractCloseableIteration.close()
when it is called for the first time.-
Methods inherited from class org.eclipse.rdf4j.common.iteration.LookAheadIteration
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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MemTripleIterator
public MemTripleIterator(MemStatementList statementList, MemResource subject, MemIRI predicate, MemValue object, int snapshot) throws InterruptedException
Creates a new MemTripleIterator that will iterate over the triples contained in the supplied MemStatementList searching for triples that occur as either subject or object in those statements, and which match the specified pattern of subject, predicate, object.- Parameters:
statementList
- the statements over which to iterate.subject
- subject of pattern.predicate
- predicate of pattern.object
- object of pattern.- Throws:
InterruptedException
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Method Detail
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getNextElement
protected MemTriple getNextElement()
Searches through statementList, starting from index _nextStatementIdx + 1, for triples that match the constraints that have been set for this iterator.- Specified by:
getNextElement
in classLookAheadIteration<MemTriple>
- Returns:
- The next element, or null if no more elements are available.
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handleClose
protected void handleClose()
Description copied from class:AbstractCloseableIteration
Called 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.- Specified by:
handleClose
in classAbstractCloseableIteration<MemTriple>
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