OntModel (Jena Framework)

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com.hp.hpl.jena.ontology
Interface OntModel

All Superinterfaces:: Model, ModelCon, ModelLock, com.hp.hpl.jena.shared.PrefixMapping, RDFReaderF, RDFWriterF

public interface OntModel
extends Model

An enhanced view of a Jena model that is known to contain ontology data, under a given ontology vocabulary (such as OWL). This class does not by itself compute the deductive extension of the graph under the semantic rules of the language. Instead, we wrap an underlying model with this ontology interface, that presents a convenience syntax for accessing the language elements. Depending on the inference capability of the underlying model, the OntModel will appear to contain more or less triples. For example, if this class is used to wrap a plain memory or database model, only the relationships asserted by the document will be reported through this convenience API. Alternatively, if the OntModel wraps an OWL inferencing model, the inferred triples from the extension will be reported as well. For example, assume the following ontology fragment:

      :A rdf:type owl:Class .
      :B rdf:type owl:Class ; rdfs:subClassOf :A .
      :widget rdf:type :B .

In a non-inferencing model, the rdf:type of the widget will be reported as class :B only. In a model that can process the OWL semantics, the widget's types will include :B, :A, and owl:Thing.

Version:: CVS $Id: OntModel.java,v 1.27 2003/07/04 14:13:42 ian_dickinson Exp $
Author:: Ian Dickinson, HP Labs (email)

Nested Class Summary

Nested classes inherited from class com.hp.hpl.jena.shared.PrefixMapping

com.hp.hpl.jena.shared.PrefixMapping.Factory, com.hp.hpl.jena.shared.PrefixMapping.IllegalPrefixException, com.hp.hpl.jena.shared.PrefixMapping.JenaLockedException

Field Summary

Fields inherited from interface com.hp.hpl.jena.shared.PrefixMapping

Standard

Fields inherited from interface com.hp.hpl.jena.rdf.model.ModelLock

READ, WRITE

Method Summary
`void`	`addLoadedImport(java.lang.String uri)` Record that this model has now imported the document with the given URI, so that it will not be re-imported in the future.
`void`	`addSubModel(Model model)` Add the given model as one of the sub-models of the enclosed ontology union model.
`void`	`addSubModel(Model model, boolean rebind)` Add the given model as one of the sub-models of the enclosed ontology union model.
`AllDifferent`	`createAllDifferent()` Answer a new, anonymous node representing the fact that a given set of classes are all pair-wise distinct.
`AllDifferent`	`createAllDifferent(RDFList differentMembers)` Answer a new, anonymous node representing the fact that a given set of classes are all pair-wise distinct.
`AllValuesFromRestriction`	`createAllValuesFromRestriction(java.lang.String uri, Property prop, Resource cls)` Answer a class description defined as the class of those individuals for which all values of the given property belong to the given class
`AnnotationProperty`	`createAnnotationProperty(java.lang.String uri)` Answer a resource that represents an annotation property in this model.
`CardinalityRestriction`	`createCardinalityRestriction(java.lang.String uri, Property prop, int cardinality)` Answer a class description defined as the class of those individuals that have exactly the given number of values for the given property.
`OntClass`	`createClass()` Answer a resource that represents an anonymous class description in this model.
`OntClass`	`createClass(java.lang.String uri)` Answer a resource that represents a class description node in this model.
`ComplementClass`	`createComplementClass(java.lang.String uri, Resource cls)` Answer a resource representing the class that is the complement of the given argument class
`DatatypeProperty`	`createDatatypeProperty(java.lang.String uri)` Answer a resource that represents datatype property in this model, and that is not a functional property.
`DatatypeProperty`	`createDatatypeProperty(java.lang.String uri, boolean functional)` Answer a resource that represents datatype property in this model.
`EnumeratedClass`	`createEnumeratedClass(java.lang.String uri, RDFList members)` Answer a resource representing the class that is the enumeration of the given list of individuals
`HasValueRestriction`	`createHasValueRestriction(java.lang.String uri, Property prop, RDFNode value)` Answer a class description defined as the class of those individuals that have the given resource as the value of the given property
`Individual`	`createIndividual(Resource cls)` Answer a resource that represents an Indvidual node in this model.
`Individual`	`createIndividual(java.lang.String uri, Resource cls)` Answer a resource that represents an Individual node in this model.
`IntersectionClass`	`createIntersectionClass(java.lang.String uri, RDFList members)` Answer a resource representing the class that is the intersection of the given list of class descriptions.
`InverseFunctionalProperty`	`createInverseFunctionalProperty(java.lang.String uri)` Answer a resource representing an inverse functional property
`InverseFunctionalProperty`	`createInverseFunctionalProperty(java.lang.String uri, boolean functional)` Answer a resource representing an inverse functional property, which is optionally also functional.
`MaxCardinalityRestriction`	`createMaxCardinalityRestriction(java.lang.String uri, Property prop, int cardinality)` Answer a class description defined as the class of those individuals that have at most the given number of values for the given property.
`MinCardinalityRestriction`	`createMinCardinalityRestriction(java.lang.String uri, Property prop, int cardinality)` Answer a class description defined as the class of those individuals that have at least the given number of values for the given property.
`ObjectProperty`	`createObjectProperty(java.lang.String uri)` Answer a resource representing an object property in this model, and that is not a functional property.
`ObjectProperty`	`createObjectProperty(java.lang.String uri, boolean functional)` Answer a resource that represents an object property in this model.
`Ontology`	`createOntology(java.lang.String uri)` Answer a resource that represents an ontology description node in this model.
`OntProperty`	`createOntProperty(java.lang.String uri)` Answer a resource representing an generic property in this model.
`OntResource`	`createOntResource(java.lang.Class javaClass, Resource rdfType, java.lang.String uri)` Answer a resource that represents a generic ontology node in this model.
`Restriction`	`createRestriction(Property p)` Answer a resource that represents an anonymous property restriction in this model.
`Restriction`	`createRestriction(java.lang.String uri, Property p)` Answer a resource that represents a property restriction in this model.
`SomeValuesFromRestriction`	`createSomeValuesFromRestriction(java.lang.String uri, Property prop, Resource cls)` Answer a class description defined as the class of those individuals that have at least one property with a value belonging to the given class
`SymmetricProperty`	`createSymmetricProperty(java.lang.String uri)` Answer a resource representing a symmetric property
`SymmetricProperty`	`createSymmetricProperty(java.lang.String uri, boolean functional)` Answer a resource representing a symmetric property, which is optionally also functional.
`TransitiveProperty`	`createTransitiveProperty(java.lang.String uri)` Answer a resource representing a transitive property
`TransitiveProperty`	`createTransitiveProperty(java.lang.String uri, boolean functional)` Answer a resource representing a transitive property, which is optionally also functional.
`UnionClass`	`createUnionClass(java.lang.String uri, RDFList members)` Answer a resource representing the class that is the union of the given list of class desctiptions
`AllValuesFromRestriction`	`getAllValuesFromRestriction(java.lang.String uri)` Answer a class description defined as the class of those individuals for which all values of the given property belong to the given class.
`AnnotationProperty`	`getAnnotationProperty(java.lang.String uri)` Answer a resource that represents an annotation property in this model.
`Model`	`getBaseModel()` Answer the base model of this model.
`CardinalityRestriction`	`getCardinalityRestriction(java.lang.String uri)` Answer a class description defined as the class of those individuals that have exactly the given number of values for the given property.
`ComplementClass`	`getComplementClass(java.lang.String uri)` Answer a resource representing the class that is the complement of another class.
`DatatypeProperty`	`getDatatypeProperty(java.lang.String uri)` Answer a resource that represents datatype property in this model. .
`OntDocumentManager`	`getDocumentManager()` Answer a reference to the document manager that this model is using to manage ontology <-> mappings, and to load the imports closure.
`EnumeratedClass`	`getEnumeratedClass(java.lang.String uri)` Answer a resource representing the class that is the enumeration of a list of individuals.
`HasValueRestriction`	`getHasValueRestriction(java.lang.String uri)` Answer a class description defined as the class of those individuals that have the given resource as the value of the given property.
`Individual`	`getIndividual(java.lang.String uri)` Answer a resource that represents an Individual node in this model.
`IntersectionClass`	`getIntersectionClass(java.lang.String uri)` Answer a resource representing the class that is the intersection of a list of class descriptions.
`InverseFunctionalProperty`	`getInverseFunctionalProperty(java.lang.String uri)` Answer a resource representing an inverse functional property.
`MaxCardinalityRestriction`	`getMaxCardinalityRestriction(java.lang.String uri)` Answer a class description defined as the class of those individuals that have at most the given number of values for the given property.
`MinCardinalityRestriction`	`getMinCardinalityRestriction(java.lang.String uri)` Answer a class description defined as the class of those individuals that have at least the given number of values for the given property.
`ModelMaker`	`getModelMaker()` Answer the model maker associated with this model (used for constructing the constituent models of the imports closure).
`ObjectProperty`	`getObjectProperty(java.lang.String uri)` Answer a resource representing an object property in this model.
`OntClass`	`getOntClass(java.lang.String uri)` Answer a resource that represents a class description node in this model.
`Ontology`	`getOntology(java.lang.String uri)` Answer a resource that represents an ontology description node in this model.
`OntProperty`	`getOntProperty(java.lang.String uri)` Answer a resource representing an generic property in this model.
`Profile`	`getProfile()` Answer the language profile (for example, OWL or DAML+OIL) that this model is working to.
`Restriction`	`getRestriction(java.lang.String uri)` Answer a resource that represents a property restriction in this model.
`SomeValuesFromRestriction`	`getSomeValuesFromRestriction(java.lang.String uri)` Answer a class description defined as the class of those individuals that have at least one property with a value belonging to the given class.
`OntModelSpec`	`getSpecification()` Answer the ontology model specification that was used to construct this model
`java.util.List`	`getSubGraphs()` Answer the sub-graphs of this model.
`SymmetricProperty`	`getSymmetricProperty(java.lang.String uri)` Answer a resource representing a symmetric property.
`TransitiveProperty`	`getTransitiveProperty(java.lang.String uri)` Answer a resource representing a transitive property.
`UnionClass`	`getUnionClass(java.lang.String uri)` Answer a resource representing the class that is the union of a list of class desctiptions.
`boolean`	`hasLoadedImport(java.lang.String uri)` Answer true if this model has had the given URI document imported into it.
`ExtendedIterator`	`listAllDifferent()` Answer an iterator that ranges over the nodes that denote pair-wise disjointness between sets of classes.
`ExtendedIterator`	`listAnnotationProperties()` Answer an iterator that ranges over the properties in this model that are declared to be annotation properties.
`ExtendedIterator`	`listClasses()` Answer an iterator that ranges over all of the various forms of class description resource in this model.
`ExtendedIterator`	`listComplementClasses()` Answer an iterator that ranges over the complement class-descriptions in this model, i.e. the class resources specified to have a property `complementOf` (or equivalent) and a list of values.
`ExtendedIterator`	`listDatatypeProperties()` Answer an iterator that ranges over the datatype property resources in this model, i.e. the resources with `rdf:type DatatypeProperty` or equivalent.
`ExtendedIterator`	`listEnumeratedClasses()` Answer an iterator that ranges over the enumerated class class-descriptions in this model, i.e. the class resources specified to have a property `oneOf` (or equivalent) and a list of values.
`java.util.List`	`listImportedOntologyURIs()` Answer a list of the imported URI's in this ontology model.
`ExtendedIterator`	`listIndividuals()` Answer an iterator that ranges over the individual resources in this model, i.e. the resources with `rdf:type` corresponding to a class defined in the ontology.
`ExtendedIterator`	`listIntersectionClasses()` Answer an iterator that ranges over the intersection class-descriptions in this model, i.e. the class resources specified to have a property `intersectionOf` (or equivalent) and a list of values.
`ExtendedIterator`	`listNamedClasses()` Answer an iterator that ranges over the named class-descriptions in this model, i.e. resources with `rdf:type Class` (or equivalent) and a node URI.
`ExtendedIterator`	`listObjectProperties()` Answer an iterator that ranges over the object property resources in this model, i.e. the resources with `rdf:type ObjectProperty` or equivalent.
`ExtendedIterator`	`listOntologies()` Answer an iterator that ranges over the ontology resources in this model, i.e. the resources with `rdf:type Ontology` or equivalent.
`ExtendedIterator`	`listOntProperties()` Answer an iterator that ranges over the property resources in this model, i.e. the resources with `rdf:type Property` or equivalent.
`ExtendedIterator`	`listRestrictions()` Answer an iterator that ranges over the property restriction class-descriptions in this model, i.e. resources with `rdf:type Restriction` (or equivalent).
`ExtendedIterator`	`listUnionClasses()` Answer an iterator that ranges over the union class-descriptions in this model, i.e. the class resources specified to have a property `unionOf` (or equivalent) and a list of values.
`ExtendedIterator`	`queryFor(BindingQueryPlan query, java.util.List altQueries, java.lang.Class asKey)` Answer the iterator over the resources from the graph that satisfy the given query, followed by the answers to the alternative queries (if specified).
`void`	`setStrictMode(boolean strict)` Set the checking mode to strict or non-strict.
`boolean`	`strictMode()` Answer true if this model is currently in strict checking mode.
`Model`	`write(java.io.OutputStream out)` Write a serialization of this model as an XML document.
`Model`	`write(java.io.OutputStream out, java.lang.String lang)` Write a serialized represention of this model in a specified language.
`Model`	`write(java.io.OutputStream out, java.lang.String lang, java.lang.String base)` Write a serialized represention of a model in a specified language.
`Model`	`write(java.io.Writer writer)` Write the model as an XML document.
`Model`	`write(java.io.Writer writer, java.lang.String lang)` Write a serialized represention of a model in a specified language.
`Model`	`write(java.io.Writer writer, java.lang.String lang, java.lang.String base)` Write a serialized represention of a model in a specified language.
`Model`	`writeAll(java.io.OutputStream out, java.lang.String lang, java.lang.String base)` Write a serialized represention of all of the contents of the model, including inferred statements and statements imported from other documents.
`Model`	`writeAll(java.io.Writer writer, java.lang.String lang, java.lang.String base)` Write a serialized represention of all of the contents of the model, including inferred statements and statements imported from other documents.

Methods inherited from interface com.hp.hpl.jena.rdf.model.Model

abort, add, add, add, add, add, begin, close, commit, contains, contains, contains, containsAll, containsAll, containsAny, containsAny, containsResource, createList, createList, createList, createLiteral, createLiteral, createProperty, createReifiedStatement, createReifiedStatement, createResource, createResource, createResource, createStatement, createTypedLiteral, createTypedLiteral, createTypedLiteral, difference, equals, executeInTransaction, getAnyReifiedStatement, getGraph, getModelLock, getProperty, getProperty, getResource, independent, intersection, isEmpty, isIsomorphicWith, isReified, listNameSpaces, listObjects, listObjectsOfProperty, listObjectsOfProperty, listReifiedStatements, listReifiedStatements, listStatements, listStatements, listStatements, listSubjects, listSubjectsWithProperty, listSubjectsWithProperty, query, queryBindingsWith, queryHandler, read, read, read, read, read, read, register, remove, remove, remove, removeAllReifications, removeReification, size, supportsSetOperations, supportsTransactions, union, unregister

Methods inherited from interface com.hp.hpl.jena.rdf.model.ModelCon

add, add, add, add, add, add, add, add, add, add, add, contains, contains, contains, contains, contains, contains, contains, contains, createAlt, createAlt, createBag, createBag, createLiteral, createLiteral, createLiteral, createLiteral, createLiteral, createLiteral, createLiteral, createProperty, createResource, createResource, createResource, createResource, createSeq, createSeq, createStatement, createStatement, createStatement, createStatement, createStatement, createStatement, createStatement, createStatement, createStatement, createStatement, createTypedLiteral, createTypedLiteral, createTypedLiteral, createTypedLiteral, createTypedLiteral, createTypedLiteral, createTypedLiteral, createTypedLiteral, createTypedLiteral, getAlt, getAlt, getBag, getBag, getProperty, getRDFNode, getResource, getSeq, getSeq, listStatements, listStatements, listStatements, listStatements, listStatements, listStatements, listStatements, listSubjectsWithProperty, listSubjectsWithProperty, listSubjectsWithProperty, listSubjectsWithProperty, listSubjectsWithProperty, listSubjectsWithProperty, listSubjectsWithProperty, listSubjectsWithProperty, remove, remove

Methods inherited from interface com.hp.hpl.jena.rdf.model.RDFReaderF

getReader, getReader, setReaderClassName

Methods inherited from interface com.hp.hpl.jena.rdf.model.RDFWriterF

getWriter, getWriter, setWriterClassName

Methods inherited from interface com.hp.hpl.jena.shared.PrefixMapping

expandPrefix, getNsPrefixMap, getNsPrefixURI, getNsURIPrefix, lock, setNsPrefix, setNsPrefixes, setNsPrefixes, usePrefix

Methods inherited from interface com.hp.hpl.jena.rdf.model.ModelLock

enterCriticalSection, leaveCriticalSection

Method Detail

listOntologies

public ExtendedIterator listOntologies()

Answer an iterator that ranges over the ontology resources in this model, i.e. the resources with rdf:type Ontology or equivalent. These resources typically contain metadata about the ontology document that contains them.

Specifically, the resources in this iterator will those whose type corresponds to the value given in the ontology vocabulary associated with this model, see Profile.ONTOLOGY().