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

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

All Implemented Interfaces:

ModifiableOntologyIndex, OntologyIndex

Direct Known Subclasses:

DifferentialIndex

public class DirectIndex
extends Object
implements ModifiableOntologyIndex

Nested Class Summary

static class

DirectIndex.ContextRootInitializationRule Adds root to the context

Field Summary

protected static org.apache.log4j.Logger

LOGGER_

Constructor Summary

DirectIndex()

DirectIndex(IndexedObjectCache objectCache)

Method Summary

void	add(IndexedClassExpression target, ChainableRule<Context> rule) Adds a new context rule for the given IndexedClassExpression
void	add(IndexedObject newObject) Adds the given IndexedObject to this OntologyIndex
void	addClass(ElkClass newClass) Add the given ElkClass to the signature of this OntologyIndex
void	addContextInitRule(ChainableRule<Context> newRule) Adds a new context initialization for this OntologyIndex.
void	addNamedIndividual(ElkNamedIndividual newIndividual) Add the given ElkNamedIndividual to the signature of this OntologyIndex
void	addReflexiveProperty(IndexedObjectProperty property) Assert reflexivity of the given IndexedObjectProperty
Chain<ChainableRule<Context>>	getContextInitRuleChain()
LinkRule<Context>	getContextInitRuleHead()
Collection<IndexedClass>	getIndexedClasses()
Collection<IndexedClassExpression>	getIndexedClassExpressions()
Collection<IndexedIndividual>	getIndexedIndividuals()
IndexedObjectCache	getIndexedObjectCache()
Collection<IndexedObjectProperty>	getIndexedObjectProperties()
IndexedClass	getIndexedOwlNothing() Return the indexed representation of owl:Nothing
IndexedClass	getIndexedOwlThing() Return the indexed representation of owl:Thing
Collection<IndexedPropertyChain>	getIndexedPropertyChains()
Collection<IndexedObjectProperty>	getReflexiveObjectProperties()
void	remove(IndexedClassExpression target, ChainableRule<Context> rule) Removes an existing context rule for the given IndexedClassExpression
void	remove(IndexedObject oldObject) Removes the given IndexedObject from this OntologyIndex
void	removeClass(ElkClass oldClass) Removes the given ElkClass from the signature of this OntologyIndex
void	removeContextInitRule(ChainableRule<Context> oldRule) Removes an existing context initialization for this OntologyIndex
void	removeNamedIndividual(ElkNamedIndividual oldIndividual) Removes the given ElkNamedIndividual from the signature of this OntologyIndex
void	removeReflexiveProperty(IndexedObjectProperty property) Retracts reflexivity of the given IndexedObjectProperty

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER_

protected static final org.apache.log4j.Logger LOGGER_

Constructor Detail

DirectIndex

public DirectIndex(IndexedObjectCache objectCache)

DirectIndex

public DirectIndex()

Method Detail

getContextInitRuleHead

public LinkRule<Context> getContextInitRuleHead()

Specified by:

getContextInitRuleHead in interface OntologyIndex

Returns:

the first context initialization rule assigned to this OntologyIndex, or null if there no such rules; all other rules can be obtained by traversing over Link.next()

getIndexedClassExpressions

public Collection<IndexedClassExpression> getIndexedClassExpressions()

Specified by:

getIndexedClassExpressions in interface OntologyIndex

Returns:

the IndexedClassExpressions for all ElkClassExpressions occurring in the ontology (including owl:Thing and owl:Nothing) or added/removed from the ontology since the last commit of the differential index

getIndexedClasses

public Collection<IndexedClass> getIndexedClasses()

Specified by:

getIndexedClasses in interface OntologyIndex

Returns:

the IndexedClasses for all ElkClasses occurring in the ontology (including owl:Thing and owl:Nothing)

getIndexedIndividuals

public Collection<IndexedIndividual> getIndexedIndividuals()

Specified by:

getIndexedIndividuals in interface OntologyIndex

Returns:

the IndexedIndividuals for all ElkIndividuals occurring in the ontology.

getIndexedPropertyChains

public Collection<IndexedPropertyChain> getIndexedPropertyChains()

Specified by:

getIndexedPropertyChains in interface OntologyIndex

Returns:

the IndexedPropertyChains for all ElkSubObjectPropertyExpressions occurring in the ontology.

getIndexedObjectProperties

public Collection<IndexedObjectProperty> getIndexedObjectProperties()

Specified by:

getIndexedObjectProperties in interface OntologyIndex

Returns:

the IndexedObjectPropertys for all ElkObjectPropertys occurring in the ontology.

getReflexiveObjectProperties

public Collection<IndexedObjectProperty> getReflexiveObjectProperties()

Specified by:

getReflexiveObjectProperties in interface OntologyIndex

Returns:

the IndexedObjectPropertys for all ElkObjectPropertys occurring in the reflexivity axioms of the ontology.

getIndexedOwlThing

public IndexedClass getIndexedOwlThing()

Description copied from interface: OntologyIndex

Return the indexed representation of owl:Thing

Specified by:

getIndexedOwlThing in interface OntologyIndex

Returns:

the IndexedClass corresponding to owl:Thing. It is assumed that owl:Thing occurs (i.e., is declared) in every ontology.

getIndexedOwlNothing

public IndexedClass getIndexedOwlNothing()

Description copied from interface: OntologyIndex

Return the indexed representation of owl:Nothing

Specified by:

getIndexedOwlNothing in interface OntologyIndex

Returns:

the IndexedClass corresponding to owl:Nothing. It is assumed that owl:Nothing contains (i.e., is declared) in every ontology.

getIndexedObjectCache

public IndexedObjectCache getIndexedObjectCache()

Specified by:

getIndexedObjectCache in interface ModifiableOntologyIndex

Returns:

the IndexedObjectCache associated with this index; this is where all IndexedObjects of this OntologyIndex are stored

addClass

public void addClass(ElkClass newClass)

Description copied from interface: ModifiableOntologyIndex

Add the given ElkClass to the signature of this OntologyIndex

Specified by:

addClass in interface ModifiableOntologyIndex

Parameters:

newClass - the ElkClass to be added

removeClass

public void removeClass(ElkClass oldClass)

Description copied from interface: ModifiableOntologyIndex

Removes the given ElkClass from the signature of this OntologyIndex

Specified by:

removeClass in interface ModifiableOntologyIndex

Parameters:

oldClass - the ElkClass to be removed

addNamedIndividual

public void addNamedIndividual(ElkNamedIndividual newIndividual)

Description copied from interface: ModifiableOntologyIndex

Add the given ElkNamedIndividual to the signature of this OntologyIndex

Specified by:

addNamedIndividual in interface ModifiableOntologyIndex

Parameters:

newIndividual - the ElkNamedIndividual to be added

removeNamedIndividual

public void removeNamedIndividual(ElkNamedIndividual oldIndividual)

Description copied from interface: ModifiableOntologyIndex

Removes the given ElkNamedIndividual from the signature of this OntologyIndex

Specified by:

removeNamedIndividual in interface ModifiableOntologyIndex

Parameters:

oldIndividual - the ElkNamedIndividual to be removed

addContextInitRule

public void addContextInitRule(ChainableRule<Context> newRule)

Description copied from interface: ModifiableOntologyIndex

Adds a new context initialization for this OntologyIndex.

Specified by:

addContextInitRule in interface ModifiableOntologyIndex

Parameters:

newRule - the context initialization rule to be added

See Also:

OntologyIndex.getContextInitRuleHead()

removeContextInitRule

public void removeContextInitRule(ChainableRule<Context> oldRule)

Description copied from interface: ModifiableOntologyIndex

Removes an existing context initialization for this OntologyIndex

Specified by:

removeContextInitRule in interface ModifiableOntologyIndex

Parameters:

oldRule - the context initialization rule to be removed

See Also:

OntologyIndex.getContextInitRuleHead()

add

public void add(IndexedClassExpression target,
                ChainableRule<Context> rule)

Description copied from interface: ModifiableOntologyIndex

Adds a new context rule for the given IndexedClassExpression

Specified by:

add in interface ModifiableOntologyIndex

Parameters:

target - the IndexedClassExpression for which to add the rule

rule - the context rule to be added

remove

public void remove(IndexedClassExpression target,
                   ChainableRule<Context> rule)

Description copied from interface: ModifiableOntologyIndex

Removes an existing context rule for the given IndexedClassExpression

Specified by:

remove in interface ModifiableOntologyIndex

Parameters:

target - the IndexedClassExpression for which to remove the rule

rule - the context rule to be removed

add

public void add(IndexedObject newObject)

Description copied from interface: ModifiableOntologyIndex

Adds the given IndexedObject to this OntologyIndex

Specified by:

add in interface ModifiableOntologyIndex

Parameters:

newObject - the object to be added

remove

public void remove(IndexedObject oldObject)

Description copied from interface: ModifiableOntologyIndex

Removes the given IndexedObject from this OntologyIndex

Specified by:

remove in interface ModifiableOntologyIndex

Parameters:

oldObject - the object to be removed

addReflexiveProperty

public void addReflexiveProperty(IndexedObjectProperty property)

Description copied from interface: ModifiableOntologyIndex

Assert reflexivity of the given IndexedObjectProperty

Specified by:

addReflexiveProperty in interface ModifiableOntologyIndex

Parameters:

property - the IndexedObjectProperty which should be asserted reflexive

removeReflexiveProperty

public void removeReflexiveProperty(IndexedObjectProperty property)

Description copied from interface: ModifiableOntologyIndex

Retracts reflexivity of the given IndexedObjectProperty

Specified by:

removeReflexiveProperty in interface ModifiableOntologyIndex

Parameters:

property - the IndexedObjectProperty which should not be reflexive anymore

getContextInitRuleChain

public Chain<ChainableRule<Context>> getContextInitRuleChain()

Returns:

a Chain view of context initialization rules assigned to this OntologyIndex; it can be used for inserting new rules or deleting existing ones