| com.hp.hpl.jena.ontology.Individual
All known Subclasses: com.hp.hpl.jena.ontology.impl.IndividualImpl,
| Individual | | public interface Individual extends OntResource(Code) | |
Interface that encapsulates an individual in an ontology, sometimes
referred to as a fact or assertion, or a member of the a-box. In order
to be recognised as an individual, rather than a generic resource,
at least one rdf:type statement, referring to a known class,
must be present in the model.
author:
Ian Dickinson, HP Labs
author:
(email)
version:
CVS $Id: Individual.java,v 1.17 2008/01/23 12:47:17 ian_dickinson Exp $ |
| Method Summary | |
| public void | addOntClass(Resource cls)
Add the given ontology class as one of the classes to which
this individual belongs. | | public OntClass | getOntClass()
Answer an ontology class to which this individual belongs. | | public OntClass | getOntClass(boolean direct)
Answer an ontology class to which this individual belongs. | | public boolean | hasOntClass(Resource ontClass, boolean direct)
Answer true if this individual is a member of the class denoted by the
given class resource.
Parameters:
ontClass - Denotes an ontology class to which this individual may belong
Parameters:
direct - If true, only consider the direct types of this individual, ignoringthe super-classes of the stated types. | | public boolean | hasOntClass(Resource ontClass)
Answer true if this individual is a member of the class denoted by the
given ontology class resource. | | public boolean | hasOntClass(String uri)
| | public ExtendedIterator | listOntClasses(boolean direct)
Answer an iterator over the ontology classes to which this individual belongs.
The members of the iterator will be
OntClass objects.
Parameters:
direct - If true, only answer those resources that are direct typesof this individual, not the super-classes of the class etc. | | public void | removeOntClass(Resource ontClass)
Attempt to remove this individual as a member of the
given ontology class. | | public void | setOntClass(Resource cls)
Set the ontology class for this individual, replacing any
existing class membership. |
| addOntClass | | public void addOntClass(Resource cls)(Code) | | Add the given ontology class as one of the classes to which
this individual belongs. Class membership is encoded using the
rdf:type property.
Parameters:
cls - An RDF resource denoting an additional class to which this individualbelongs. |
| getOntClass | | public OntClass getOntClass()(Code) | |
Answer an ontology class to which this individual belongs. If the individual
belongs to more than one class, which is common in ontology models using
a reasoner, then the return value will be one of
the possible values but it is not specified which one.
In the case of multiple classes, callers should not rely on
the return value being consistent, e.g. across runs, since it may
depend on the underlying hash indexes in the model.
This method considers any ontology class for the individual, not just
direct classes. It is equivalent to getOntClass(false).
A resource denoting the ontology class for this individual, or one of them ifmore than one is defined.
exception:
ConversionException - if the return value is known to be anontology class, assuming strict type checking is turned on for the underlyingOntModel. See OntModel.setStrictMode(boolean) |
| getOntClass | | public OntClass getOntClass(boolean direct)(Code) | |
Answer an ontology class to which this individual belongs. If the resource
belongs to more than one class, which is common in ontology models using
a reasoner, then the return value will be one of
the possible values but it is not specified which one.
In the case of multiple classes, callers should not rely on
the return value being consistent, e.g. across runs, since it may
depend on the underlying hash indexes in the model.
Parameters:
direct - If true, only direct classes are considered.A class is a direct class of this Individual if and only ifthere is no other resource is both an rdf:type of thisindividual and a sub-class of the candidate class. A resource denoting the ontology class for this individual, or one of them ifmore than one is defined.
exception:
ConversionException - if the return value is known to be anontology class, assuming strict type checking is turned on for the underlyingOntModel. See OntModel.setStrictMode(boolean) |
| hasOntClass | | public boolean hasOntClass(Resource ontClass, boolean direct)(Code) | |
Answer true if this individual is a member of the class denoted by the
given class resource.
Parameters:
ontClass - Denotes an ontology class to which this individual may belong
Parameters:
direct - If true, only consider the direct types of this individual, ignoringthe super-classes of the stated types. True if this individual is a member of the given class, possibly taking thedirectness constraint into account. |
| hasOntClass | | public boolean hasOntClass(Resource ontClass)(Code) | |
Answer true if this individual is a member of the class denoted by the
given ontology class resource. Not limited to only direct class relationships,
so this is equivalent to:
hasOntClass( ontClass, false );
Parameters:
ontClass - Denotes a class to which this individual may belong True if this individual has the given class as one of its rdf:type's. |
| hasOntClass | | public boolean hasOntClass(String uri)(Code) | |
Answer true if this individual is a member of the class denoted by the
given URI.
Parameters:
uri - Denotes the URI of a class to which this value may belong True if this individual has the given class as one of its rdf:type's. |
| listOntClasses | | public ExtendedIterator listOntClasses(boolean direct)(Code) | |
Answer an iterator over the ontology classes to which this individual belongs.
The members of the iterator will be
OntClass objects.
Parameters:
direct - If true, only answer those resources that are direct typesof this individual, not the super-classes of the class etc. An iterator over the set of this individual's classes. Each memberof the iteration will be an OntClass. |
| removeOntClass | | public void removeOntClass(Resource ontClass)(Code) | | Attempt to remove this individual as a member of the
given ontology class. This relationship is represented by a rdf:type
statement in the underlying model. If this relationship was originally
asserted, then removal will always succeed. However, if the rdf:type
relationship is entailed by the action of an attached reasoner, it may not be
possible to directly remove it. Callers should instead update the assertions
and axioms that entail the class membership relationship, and ensure the
reasoner gets chance to update the entailments.
If this individual is not a member of the given class, the
operation has no effect.
Parameters:
ontClass - A resource denoting a class that that is to be removed fromthe set of classes to which this individual belongs |
| setOntClass | | public void setOntClass(Resource cls)(Code) | | Set the ontology class for this individual, replacing any
existing class membership. Class membership is encoded using the
rdf:type property. Any existing statements for the RDF type
will first be removed.
Parameters:
cls - The RDF resource denoting the new class to which this individual belongs,which will replace any existing rdf:type property. |
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