Class MemStatementIterator
- java.lang.Object
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- org.eclipse.rdf4j.sail.memory.model.MemStatementIterator
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- All Implemented Interfaces:
AutoCloseable,Iterator<MemStatement>,CloseableIteration<MemStatement>
public class MemStatementIterator extends Object implements CloseableIteration<MemStatement>
A StatementIterator that can iterate over a list of Statement objects. This iterator compares Resource and Literal objects using the '==' operator, which is possible thanks to the extensive sharing of these objects in the MemoryStore.
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Field Summary
Fields Modifier and Type Field Description static intMIN_SIZE_TO_CONSIDER_FOR_CACHE
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Constructor Summary
Constructors Constructor Description MemStatementIterator(MemStatementList statementList, MemResource subject, MemIRI predicate, MemValue object, Boolean explicit, int snapshot, MemStatementIteratorCache iteratorCache, MemResource... contexts)Creates a new MemStatementIterator that will iterate over the statements contained in the supplied MemStatementList searching for statements that match the specified pattern of subject, predicate, object and context(s).
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static CloseableIteration<MemStatement>cacheAwareInstance(MemStatementList smallestList, MemResource subj, MemIRI pred, MemValue obj, Boolean explicit, int snapshot, MemResource[] memContexts, MemStatementIteratorCache iteratorCache)voidclose()Closes this iteration, freeing any resources that it is holding.booleanequals(Object o)org.eclipse.rdf4j.sail.memory.model.MemStatementIterator.StatsgetStats()inthashCode()booleanhasNext()MemStatementnext()voidremove()Throws anUnsupportedOperationException.StringtoString()-
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, 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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MIN_SIZE_TO_CONSIDER_FOR_CACHE
public static final int MIN_SIZE_TO_CONSIDER_FOR_CACHE
- See Also:
- Constant Field Values
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Constructor Detail
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MemStatementIterator
public MemStatementIterator(MemStatementList statementList, MemResource subject, MemIRI predicate, MemValue object, Boolean explicit, int snapshot, MemStatementIteratorCache iteratorCache, MemResource... contexts) throws InterruptedException
Creates a new MemStatementIterator that will iterate over the statements contained in the supplied MemStatementList searching for statements that match the specified pattern of subject, predicate, object and context(s).- Parameters:
statementList- the statements over which to iterate.subject- subject of pattern.predicate- predicate of pattern.object- object of pattern.contexts- context(s) of pattern.- Throws:
InterruptedException
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Method Detail
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cacheAwareInstance
public static CloseableIteration<MemStatement> cacheAwareInstance(MemStatementList smallestList, MemResource subj, MemIRI pred, MemValue obj, Boolean explicit, int snapshot, MemResource[] memContexts, MemStatementIteratorCache iteratorCache) throws InterruptedException
- Throws:
InterruptedException
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getStats
public org.eclipse.rdf4j.sail.memory.model.MemStatementIterator.Stats getStats()
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hasNext
public final boolean hasNext()
- Specified by:
hasNextin interfaceIterator<MemStatement>
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next
public final MemStatement next()
- Specified by:
nextin interfaceIterator<MemStatement>
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remove
public void remove()
Throws anUnsupportedOperationException.- Specified by:
removein interfaceIterator<MemStatement>
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close
public final void close()
Description copied from interface:CloseableIterationCloses this iteration, freeing any resources that it is holding. If the iteration has already been closed then invoking this method has no effect.- Specified by:
closein interfaceAutoCloseable- Specified by:
closein interfaceCloseableIteration<MemStatement>
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