com.hp.hpl.jena.daml.common
Class DAMLObjectPropertyImpl

java.lang.Object
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  +--com.hp.hpl.mesa.rdf.jena.common.ResourceImpl
        |
        +--com.hp.hpl.jena.daml.common.DAMLCommonImpl
              |
              +--com.hp.hpl.jena.daml.common.DAMLPropertyImpl
                    |
                    +--com.hp.hpl.jena.daml.common.DAMLObjectPropertyImpl

All Implemented Interfaces:

DAMLCommon, DAMLObjectProperty, DAMLProperty, Property, RDFNode, Resource, ResourceI

public class DAMLObjectPropertyImpl

extends DAMLPropertyImpl

implements DAMLObjectProperty

Implementation for Java encapsulation of an object property in a DAML ontology. An object property is a partition of the class of properties, in which the range of the property is a DAML instance (rather than a datatype). Object properties may be transitive and unambiguous, which are modelled in the specification by sub-classes of ObjectProperty named TransitiveProperty and UnambiguousProperty. In this API, transitivity and uniqueness are modelled as attributes of the DAMLObjectProperty object.

Version:

CVS info: $Id: DAMLObjectPropertyImpl.java,v 1.2 2002/02/22 17:05:06 ian_dickinson Exp $

Author:

Ian Dickinson, HP Labs (email)

Constructor Summary

DAMLObjectPropertyImpl(java.lang.String uri, DAMLModel store, DAMLVocabulary vocabulary)
Constructor, takes the URI for this property, and the underlying model it will be attached to.

DAMLObjectPropertyImpl(java.lang.String namespace, java.lang.String name, DAMLModel store, DAMLVocabulary vocabulary)
Constructor, takes the name and namespace for this property, and the underlying model it will be attached to.

Method Summary

boolean	isTransitive() Answer true if this property is to be considered transitive, that is it is characterised by the DAML class TransitiveProperty
boolean	isUnambiguous() Answer true if this property is to be considered unabiguous, that is it is characterised by the DAML class UnambiguousProperty
PropertyAccessor	prop_inverseOf() Property accessor for the 'inverseOf' property of a DAML Property.
void	setIsTransitive(boolean transitive) Set the flag to indicate that this property is to be considered transitive - that is, it is defined by the DAML class TransitiveProperty.
void	setIsUnambiguous(boolean unambiguous) Set the flag to indicate that this property is to be considered unambiguous - that is, it is defined by the DAML class UnambiguousProperty.
java.lang.String	toString() Return a readable representation of the DAML value

Methods inherited from class com.hp.hpl.jena.daml.common.DAMLPropertyImpl

getDomainClasses, getEquivalentValues, getOrdinal, getRangeClasses, getSameProperties, getSubProperties, getSubProperties, getSuperProperties, getSuperProperties, isUnique, port, prop_domain, prop_range, prop_samePropertyAs, prop_subPropertyOf, setIsUnique

Methods inherited from class com.hp.hpl.jena.daml.common.DAMLCommonImpl

getAll, getDAMLModel, getEquivalenceSet, getNumPropertyValues, getPropertyValue, getPropertyValues, getRDFTypes, getSelfIterator, getVocabulary, hasRDFType, hasRDFType, prop_comment, prop_equivalentTo, prop_label, prop_type, remove, removeAll, removeProperty, replaceProperty, setPropertyValue, setRDFType, setRDFType

Methods inherited from class com.hp.hpl.mesa.rdf.jena.common.ResourceImpl

abort, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, begin, commit, equals, getEmbeddedResource, getId, getLocalName, getModel, getNameSpace, getProperty, getURI, hashCode, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, isAnon, listProperties, listProperties, removeProperties

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.hp.hpl.jena.daml.DAMLProperty

getDomainClasses, getEquivalentValues, getRangeClasses, getSameProperties, getSubProperties, getSubProperties, getSuperProperties, getSuperProperties, isUnique, prop_domain, prop_range, prop_samePropertyAs, prop_subPropertyOf, setIsUnique

Methods inherited from interface com.hp.hpl.jena.daml.DAMLCommon

getAll, getDAMLModel, getEquivalenceSet, getNumPropertyValues, getPropertyValue, getPropertyValues, getRDFTypes, getVocabulary, hasRDFType, hasRDFType, prop_comment, prop_equivalentTo, prop_label, prop_type, remove, removeAll, removeProperty, replaceProperty, setPropertyValue, setRDFType, setRDFType

Methods inherited from interface com.hp.hpl.mesa.rdf.jena.model.Resource

abort, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, addProperty, begin, commit, equals, getId, getLocalName, getModel, getNameSpace, getProperty, getURI, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, hasProperty, isAnon, listProperties, listProperties, removeProperties

Methods inherited from interface com.hp.hpl.mesa.rdf.jena.model.Property

getLocalName, getNameSpace, getOrdinal

Constructor Detail

DAMLObjectPropertyImpl

public DAMLObjectPropertyImpl(java.lang.String namespace,
                              java.lang.String name,
                              DAMLModel store,
                              DAMLVocabulary vocabulary)

Constructor, takes the name and namespace for this property, and the underlying model it will be attached to.

Parameters:

namespace - The namespace the property inhabits, or null

name - The name of the property

store - The RDF store that contains the RDF statements defining the properties of the property

vocabulary - Reference to the DAML vocabulary used by this property.

DAMLObjectPropertyImpl

public DAMLObjectPropertyImpl(java.lang.String uri,
                              DAMLModel store,
                              DAMLVocabulary vocabulary)

Constructor, takes the URI for this property, and the underlying model it will be attached to.

Parameters:

uri - The URI of the property

store - The RDF store that contains the RDF statements defining the properties of the property

vocabulary - Reference to the DAML vocabulary used by this property.

Method Detail

toString

public java.lang.String toString()

Return a readable representation of the DAML value

Specified by:

toString in interface Resource

Overrides:

toString in class DAMLPropertyImpl

Returns:

a string denoting this value

setIsTransitive

public void setIsTransitive(boolean transitive)

Set the flag to indicate that this property is to be considered transitive - that is, it is defined by the DAML class TransitiveProperty.

Specified by:

setIsTransitive in interface DAMLObjectProperty

Parameters:

transitive - True for a transitive property

isTransitive

public boolean isTransitive()

Answer true if this property is to be considered transitive, that is it is characterised by the DAML class TransitiveProperty

Specified by:

isTransitive in interface DAMLObjectProperty

Returns:

True if this property is transitive

setIsUnambiguous

public void setIsUnambiguous(boolean unambiguous)

Set the flag to indicate that this property is to be considered unambiguous - that is, it is defined by the DAML class UnambiguousProperty.

Specified by:

setIsUnambiguous in interface DAMLObjectProperty

Parameters:

unambiguous - True for a unambiguous property

isUnambiguous

public boolean isUnambiguous()

Answer true if this property is to be considered unabiguous, that is it is characterised by the DAML class UnambiguousProperty

Specified by:

isUnambiguous in interface DAMLObjectProperty

Returns:

True if this property is unambiguous

prop_inverseOf

public PropertyAccessor prop_inverseOf()

Property accessor for the 'inverseOf' property of a DAML Property. This denotes that the named property (say, P) is an inverse of this property (say, Q). Formally, if (x, y) is an instance of P, then (y, x) is an instance of Q.

Specified by:

prop_inverseOf in interface DAMLObjectProperty

Returns:

Property accessor for 'inverseOf'