org.semanticweb.elk.reasoner.indexing.hierarchy
Class IndexedObjectCache

java.lang.Object
  org.semanticweb.elk.reasoner.indexing.hierarchy.IndexedObjectCache

All Implemented Interfaces:

IndexedAxiomFilter, IndexedBinaryPropertyChainVisitor<IndexedBinaryPropertyChain>, IndexedClassExpressionFilter, IndexedClassVisitor<IndexedClass>, IndexedDataHasValueVisitor<IndexedDataHasValue>, IndexedDisjointnessAxiomVisitor<IndexedDisjointnessAxiom>, IndexedIndividualVisitor<IndexedIndividual>, IndexedObjectComplementOfVisitor<IndexedObjectComplementOf>, IndexedObjectFilter, IndexedObjectIntersectionOfVisitor<IndexedObjectIntersectionOf>, IndexedObjectPropertyVisitor<IndexedObjectProperty>, IndexedObjectSomeValuesFromVisitor<IndexedObjectSomeValuesFrom>, IndexedObjectUnionOfVisitor<IndexedObjectUnionOf>, IndexedPropertyChainFilter, IndexedSubClassOfAxiomVisitor<IndexedSubClassOfAxiom>

public class IndexedObjectCache
extends Object
implements IndexedObjectFilter

A cache of IndexedObjects in the ontology backed by a KeyEntryHashSet. It uses indexed KeyEntrys to compare object with respect to structural equality. Supports (non-recursive) addition, removal, and retrieval of single indexed objects. The recursion for indexing subobjects is in the IndexObjectConverter. Not all IndexedObjects are cached but only those whose uniqueness modulo structural equivalence is important for index updating to work correctly.

Author:

Frantisek Simancik, "Yevgeny Kazakov"

Field Summary

protected KeyEntryHashSet<IndexedAxiom>	indexedAxiomLookup
protected int	indexedClassCount
protected KeyEntryHashSet<IndexedClassExpression>	indexedClassExpressionLookup
protected int	indexedIndividualCount
protected int	indexedObjectPropertyCount
protected KeyEntryHashSet<IndexedPropertyChain>	indexedPropertyChainLookup

Constructor Summary

IndexedObjectCache()

Method Summary

void	clear()
IndexObjectConverter	getIndexObjectConverter()
boolean	isEmpty()
long	size()
void	subtract(IndexedObjectCache other) Remove all object of the given IndexedObjectCache from this IndexedObjectCache
IndexedBinaryPropertyChain	visit(IndexedBinaryPropertyChain element)
IndexedClass	visit(IndexedClass element)
IndexedDataHasValue	visit(IndexedDataHasValue element)
IndexedDisjointnessAxiom	visit(IndexedDisjointnessAxiom axiom)
IndexedIndividual	visit(IndexedIndividual element)
IndexedObjectComplementOf	visit(IndexedObjectComplementOf element)
IndexedObjectIntersectionOf	visit(IndexedObjectIntersectionOf element)
IndexedObjectProperty	visit(IndexedObjectProperty element)
IndexedObjectSomeValuesFrom	visit(IndexedObjectSomeValuesFrom element)
IndexedObjectUnionOf	visit(IndexedObjectUnionOf element)
IndexedSubClassOfAxiom	visit(IndexedSubClassOfAxiom axiom)

Methods inherited from class java.lang.Object

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

Field Detail

indexedClassExpressionLookup

protected final KeyEntryHashSet<IndexedClassExpression> indexedClassExpressionLookup

indexedPropertyChainLookup

protected final KeyEntryHashSet<IndexedPropertyChain> indexedPropertyChainLookup

indexedAxiomLookup

protected final KeyEntryHashSet<IndexedAxiom> indexedAxiomLookup

indexedClassCount

protected int indexedClassCount

indexedIndividualCount

protected int indexedIndividualCount

indexedObjectPropertyCount

protected int indexedObjectPropertyCount

Constructor Detail

IndexedObjectCache

public IndexedObjectCache()

Method Detail

getIndexObjectConverter

public IndexObjectConverter getIndexObjectConverter()

clear

public void clear()

size

public long size()

isEmpty

public boolean isEmpty()

subtract

public void subtract(IndexedObjectCache other)

Remove all object of the given IndexedObjectCache from this IndexedObjectCache

Parameters:

other - the IndexedObjectCache whose stored object should be removed from this IndexedObjectCache

visit

public IndexedClass visit(IndexedClass element)

Specified by:

visit in interface IndexedClassVisitor<IndexedClass>

visit

public IndexedIndividual visit(IndexedIndividual element)

Specified by:

visit in interface IndexedIndividualVisitor<IndexedIndividual>

visit

public IndexedObjectComplementOf visit(IndexedObjectComplementOf element)

Specified by:

visit in interface IndexedObjectComplementOfVisitor<IndexedObjectComplementOf>

visit

public IndexedObjectIntersectionOf visit(IndexedObjectIntersectionOf element)

Specified by:

visit in interface IndexedObjectIntersectionOfVisitor<IndexedObjectIntersectionOf>

visit

public IndexedObjectSomeValuesFrom visit(IndexedObjectSomeValuesFrom element)

Specified by:

visit in interface IndexedObjectSomeValuesFromVisitor<IndexedObjectSomeValuesFrom>

visit

public IndexedObjectUnionOf visit(IndexedObjectUnionOf element)

Specified by:

visit in interface IndexedObjectUnionOfVisitor<IndexedObjectUnionOf>

visit

public IndexedDataHasValue visit(IndexedDataHasValue element)

Specified by:

visit in interface IndexedDataHasValueVisitor<IndexedDataHasValue>

visit

public IndexedObjectProperty visit(IndexedObjectProperty element)

Specified by:

visit in interface IndexedObjectPropertyVisitor<IndexedObjectProperty>

visit

public IndexedBinaryPropertyChain visit(IndexedBinaryPropertyChain element)

Specified by:

visit in interface IndexedBinaryPropertyChainVisitor<IndexedBinaryPropertyChain>

visit

public IndexedSubClassOfAxiom visit(IndexedSubClassOfAxiom axiom)

Specified by:

visit in interface IndexedSubClassOfAxiomVisitor<IndexedSubClassOfAxiom>

visit

public IndexedDisjointnessAxiom visit(IndexedDisjointnessAxiom axiom)

Specified by:

visit in interface IndexedDisjointnessAxiomVisitor<IndexedDisjointnessAxiom>