org.eclipse.rdf4j.query.algebra.evaluation.limited.iterator

Class LimitedSizeIntersectIteration

java.lang.Object

org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration<E,X>

org.eclipse.rdf4j.common.iteration.IterationWrapper<E,X>

org.eclipse.rdf4j.common.iteration.FilterIteration<E,X>

org.eclipse.rdf4j.common.iteration.IntersectIteration<org.eclipse.rdf4j.query.BindingSet,org.eclipse.rdf4j.query.QueryEvaluationException>

org.eclipse.rdf4j.query.algebra.evaluation.limited.iterator.LimitedSizeIntersectIteration

All Implemented Interfaces:

AutoCloseable, org.eclipse.rdf4j.common.iteration.CloseableIteration<org.eclipse.rdf4j.query.BindingSet,org.eclipse.rdf4j.query.QueryEvaluationException>, org.eclipse.rdf4j.common.iteration.Iteration<org.eclipse.rdf4j.query.BindingSet,org.eclipse.rdf4j.query.QueryEvaluationException>

public class LimitedSizeIntersectIteration
extends org.eclipse.rdf4j.common.iteration.IntersectIteration<org.eclipse.rdf4j.query.BindingSet,org.eclipse.rdf4j.query.QueryEvaluationException>

Author:

Jerven Bolleman, SIB Swiss Institute of Bioinformatics

Field Summary

Fields inherited from class org.eclipse.rdf4j.common.iteration.IntersectIteration

arg2

Fields inherited from class org.eclipse.rdf4j.common.iteration.IterationWrapper

wrappedIter

Constructor Summary

Constructors

Constructor and Description
LimitedSizeIntersectIteration(org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg1, org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg2, AtomicLong used, long maxSize) Creates a new IntersectIteration that returns the intersection of the results of two Iterations.
LimitedSizeIntersectIteration(org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg1, org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg2, boolean distinct, AtomicLong used, long maxSize)

Method Summary

Modifier and Type	Method and Description
Set<org.eclipse.rdf4j.query.BindingSet>	addSecondSet(org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg2, Set<org.eclipse.rdf4j.query.BindingSet> set)
protected void	handleClose() After closing the set is cleared and any "used" capacity for collections is returned.

Methods inherited from class org.eclipse.rdf4j.common.iteration.IntersectIteration

accept, clearIncludeSet, inIncludeSet, makeSet, removeFromIncludeSet

Methods inherited from class org.eclipse.rdf4j.common.iteration.FilterIteration

hasNext, next

Methods inherited from class org.eclipse.rdf4j.common.iteration.IterationWrapper

remove

Methods inherited from class org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration

close, isClosed

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LimitedSizeIntersectIteration

public LimitedSizeIntersectIteration(org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg1,
                                     org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg2,
                                     AtomicLong used,
                                     long maxSize)

Creates a new IntersectIteration that returns the intersection of the results of two Iterations. By default, duplicates are not filtered from the results.

Parameters:

arg1 - An Iteration containing the first set of elements.

arg2 - An Iteration containing the second set of elements.

used - An atomic long used to monitor how many elements are in the set collections.

maxSize - Maximum size allowed by the sum of all collections used by the LimitedSizeQueryEvaluatlion.

LimitedSizeIntersectIteration

public LimitedSizeIntersectIteration(org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg1,
                                     org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg2,
                                     boolean distinct,
                                     AtomicLong used,
                                     long maxSize)

Method Detail

addSecondSet

public Set<org.eclipse.rdf4j.query.BindingSet> addSecondSet(org.eclipse.rdf4j.common.iteration.Iteration<? extends org.eclipse.rdf4j.query.BindingSet,? extends org.eclipse.rdf4j.query.QueryEvaluationException> arg2,
                                                            Set<org.eclipse.rdf4j.query.BindingSet> set)
                                                     throws org.eclipse.rdf4j.query.QueryEvaluationException

Overrides:

addSecondSet in class org.eclipse.rdf4j.common.iteration.IntersectIteration<org.eclipse.rdf4j.query.BindingSet,org.eclipse.rdf4j.query.QueryEvaluationException>

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException

handleClose

protected void handleClose()
                    throws org.eclipse.rdf4j.query.QueryEvaluationException

After closing the set is cleared and any "used" capacity for collections is returned.

Overrides:

handleClose in class org.eclipse.rdf4j.common.iteration.IntersectIteration<org.eclipse.rdf4j.query.BindingSet,org.eclipse.rdf4j.query.QueryEvaluationException>

Throws:

org.eclipse.rdf4j.query.QueryEvaluationException