org.eaglei.datatools.etl.utils
Class JenaUtils

java.lang.Object
  org.eaglei.datatools.etl.utils.JenaUtils

public class JenaUtils
extends java.lang.Object

Title: Jena Utils

Description: A collection of functions for doing common operations using the Jena library

Copyright: Copyright (c) 2006

Company: Mindswap (http://www.mindswap.org)

Version:

1.0

Author:

Michael Grove

Field Summary

static com.hp.hpl.jena.rdf.model.Resource	XML_BOOLEAN
static java.lang.String[]	XML_DATATYPES Array of the URI's of all the XML datatypes
static com.hp.hpl.jena.rdf.model.Resource	XML_DATE
static com.hp.hpl.jena.rdf.model.Resource	XML_DECIMAL
static com.hp.hpl.jena.rdf.model.Resource	XML_DOUBLE
static com.hp.hpl.jena.rdf.model.Resource	XML_FLOAT
static com.hp.hpl.jena.rdf.model.Resource	XML_INT
static com.hp.hpl.jena.rdf.model.Resource	XML_INTEGER
static com.hp.hpl.jena.rdf.model.Resource	XML_LONG
static com.hp.hpl.jena.rdf.model.Resource	XML_NEGATIVE_INTEGER
static com.hp.hpl.jena.rdf.model.Resource	XML_NONNEGATIVE_INTEGER
static com.hp.hpl.jena.rdf.model.Resource	XML_NONPOSITIVE_INTEGER
static com.hp.hpl.jena.rdf.model.Resource	XML_POSITIVE_INTEGER
static com.hp.hpl.jena.rdf.model.Resource	XML_SHORT
static com.hp.hpl.jena.rdf.model.Resource	XML_STRING
static com.hp.hpl.jena.rdf.model.Resource	XML_TIME
static com.hp.hpl.jena.rdf.model.Resource	XML_UNSIGNED_INT
static com.hp.hpl.jena.rdf.model.Resource	XML_UNSIGNED_LONG
static com.hp.hpl.jena.rdf.model.Resource	XML_UNSIGNED_SHORT
static java.lang.String	XML_URI XML Scheme URI

Constructor Summary

JenaUtils()

Method Summary

static java.util.Set	collectResourcesFromRDFList(com.hp.hpl.jena.rdf.model.Resource theList) Return all the resources in a rdf list (like seq, bag or alt) in a Set
static int	findMaxCardinality(com.hp.hpl.jena.rdf.model.Property p) Returns the max cardinality of a property
static int	findMinCardinality(com.hp.hpl.jena.rdf.model.Property p) Returns the min cardinality of a property
static java.util.Set	getAllSubClassesOf(com.hp.hpl.jena.rdf.model.Resource r, boolean direct) Returns all the subclasses of a given resource
static java.util.Set	getAllSubClassesOf(com.hp.hpl.jena.rdf.model.Resource r, com.hp.hpl.jena.rdf.model.Model m, boolean direct) Returns all the subclasses of a given resource
static java.util.Set	getAllSubPropertiesOf(com.hp.hpl.jena.rdf.model.Resource r) Returns all the subproperties of the given resource
static java.util.Set	getAllSubPropertiesOf(com.hp.hpl.jena.rdf.model.Resource r, com.hp.hpl.jena.rdf.model.Model m) Returns all the subproperties of the given resource
static java.util.Set	getAllSuperClassesOf(com.hp.hpl.jena.rdf.model.Resource r, boolean direct) Returns all the superclasses of a given resource
static java.util.Set	getAllSuperClassesOf(com.hp.hpl.jena.rdf.model.Resource r, com.hp.hpl.jena.rdf.model.Model m, boolean direct) Returns all the superclasses of the given resource
static java.util.Set	getAllSuperPropertiesOf(com.hp.hpl.jena.rdf.model.Resource r, com.hp.hpl.jena.rdf.model.Model m) Returns all the superclasses of the given resource
static java.util.Set	getAllTypes(com.hp.hpl.jena.rdf.model.Resource theRes, boolean filter) Return all types of an instance
static java.util.Set	getAllTypes(com.hp.hpl.jena.rdf.model.Resource theRes, com.hp.hpl.jena.rdf.model.Model theModel, boolean filter) Return all types of an instance
static java.lang.String	getComment(com.hp.hpl.jena.rdf.model.Resource theResource) Get the comment for a resource
static java.util.Set	getDeclaredProps(com.hp.hpl.jena.rdf.model.Resource aRes) Returns all the properties that are declared for a given resource
static java.util.Set	getDeclaredProps(com.hp.hpl.jena.rdf.model.Resource aRes, com.hp.hpl.jena.rdf.model.Model theModel) Returns all the declared properties for a given resource
static java.util.Set	getDeclaredRanges(com.hp.hpl.jena.rdf.model.Property theProp) Returns all the explictly declared ranges for the property
static java.util.Set	getDeclaredRanges(com.hp.hpl.jena.rdf.model.Property theProp, com.hp.hpl.jena.rdf.model.Model theModel) Returns all the explicitly declared ranges for the property
static java.lang.String	getLabel(com.hp.hpl.jena.rdf.model.Resource theResource) Return the label for a resource with English as the preferred language
static java.lang.String	getLabel(com.hp.hpl.jena.rdf.model.Resource theResource, java.lang.String thePreferredLang) Get the label for a resource using the given preferred language
static java.lang.String	getLocalName(java.lang.String name) Returns the local name for the specified RDF Id
static java.lang.String	getPrettyRDF(com.hp.hpl.jena.rdf.model.Model m) Given a Jena model, return the pretty rdf/xml representation of the model NOTE: This function is not complete, dont use, use the jena writer pretty print feature
static java.lang.String	getQName(com.hp.hpl.jena.rdf.model.Resource res) Returns the qname for the given resource
static java.util.Set	getRanges(com.hp.hpl.jena.rdf.model.Property aProp, com.hp.hpl.jena.rdf.model.Resource theClass) Returns all the ranges for a property with respect to a given class
static java.util.Set	getRanges(com.hp.hpl.jena.rdf.model.Property aProp, com.hp.hpl.jena.rdf.model.Resource theClass, com.hp.hpl.jena.rdf.model.Model theModel) Returns all the ranges for a property with respect to a given class
static com.hp.hpl.jena.rdf.model.Resource	getType(com.hp.hpl.jena.rdf.model.Resource theRes, boolean filter) Returns the most specific type of an instance
static com.hp.hpl.jena.rdf.model.Resource	getType(com.hp.hpl.jena.rdf.model.Resource theRes, com.hp.hpl.jena.rdf.model.Model theModel, boolean filter) Returns the most specific type of an instance
static java.util.Set	getTypes(com.hp.hpl.jena.rdf.model.Resource theRes, boolean filter) Returns the set of all stated types for the given instance
static java.util.Set	getTypes(com.hp.hpl.jena.rdf.model.Resource theRes, com.hp.hpl.jena.rdf.model.Model theModel, boolean filter)
static boolean	isClass(com.hp.hpl.jena.rdf.model.Resource aRes) Returns whether or not the given resouce is a Class
static boolean	isClass(com.hp.hpl.jena.rdf.model.Resource aRes, com.hp.hpl.jena.rdf.model.Model theModel) Returns whether or not the given resouce is a Class
static boolean	isDatatypeProperty(com.hp.hpl.jena.rdf.model.Resource aRes) Returns whether or not the given resource is defined as a datatype property
static boolean	isDatatypeProperty(com.hp.hpl.jena.rdf.model.Resource theRes, com.hp.hpl.jena.rdf.model.Model theModel) Returns whether or not the given resource is defined as a datatype property
static boolean	isIndividual(com.hp.hpl.jena.rdf.model.Resource theResource) Return whether or not the given resource is an individual
static boolean	isLanguageTerm(com.hp.hpl.jena.rdf.model.Resource r) Returns whether the given term is in the RDF, RDFS, DAML or OWL namespaces
static boolean	isObjectProperty(com.hp.hpl.jena.rdf.model.Resource theRes) Returns whether or not the given resource is defined as an object property
static boolean	isObjectProperty(com.hp.hpl.jena.rdf.model.Resource theRes, com.hp.hpl.jena.rdf.model.Model theModel) Returns whether or not the given resource is defined as an object property
static boolean	isOntology(com.hp.hpl.jena.rdf.model.Resource theRes) Returns whether or not the given resource is defined as an owl:Ontology
static boolean	isOntology(com.hp.hpl.jena.rdf.model.Resource theRes, com.hp.hpl.jena.rdf.model.Model theModel) Returns whether or not the given resource is defined as an owl:Ontology
static boolean	isProperty(com.hp.hpl.jena.rdf.model.Resource aRes) Returns whether or not the given resource is a Property
static boolean	isRDFProperty(com.hp.hpl.jena.rdf.model.Resource aRes) Returns whether or not the given resource is defined as an rdf:Property
static boolean	isSubClassOf(com.hp.hpl.jena.rdf.model.Resource theChild, com.hp.hpl.jena.rdf.model.Resource theParent) Returns whether or not the first resource is a subclass of the second
static boolean	isType(com.hp.hpl.jena.rdf.model.Resource theInst, com.hp.hpl.jena.rdf.model.Resource theType) Returns whether or not the instance is of the specified type
static boolean	isType(com.hp.hpl.jena.rdf.model.Resource theInst, com.hp.hpl.jena.rdf.model.Resource theType, com.hp.hpl.jena.rdf.model.Model theModel) Returns whether or not the instance is of the specified type
static boolean	isValidRDFId(java.lang.String theId) Returns whether or not the specified string is a valid RDF id
static boolean	isXMLDatatype(java.lang.String s) Returns whether or not the specified datatype is a known XSD datatype
static java.util.Iterator	listClasses(com.hp.hpl.jena.rdf.model.Model theModel) Returns a list of all classes in the model
static java.util.Iterator	listIndividuals(com.hp.hpl.jena.rdf.model.Model theModel) List all individuals in the given mode
static java.util.Iterator	listProperties(com.hp.hpl.jena.rdf.model.Model theModel) List all properties in the model

Methods inherited from class java.lang.Object

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

Field Detail

XML_URI

public static final java.lang.String XML_URI

XML Scheme URI

See Also:

Constant Field Values

XML_DATATYPES

public static final java.lang.String[] XML_DATATYPES

Array of the URI's of all the XML datatypes

XML_STRING

public static final com.hp.hpl.jena.rdf.model.Resource XML_STRING

XML_BOOLEAN

public static final com.hp.hpl.jena.rdf.model.Resource XML_BOOLEAN

XML_FLOAT

public static final com.hp.hpl.jena.rdf.model.Resource XML_FLOAT

XML_DOUBLE

public static final com.hp.hpl.jena.rdf.model.Resource XML_DOUBLE

XML_DECIMAL

public static final com.hp.hpl.jena.rdf.model.Resource XML_DECIMAL

XML_INTEGER

public static final com.hp.hpl.jena.rdf.model.Resource XML_INTEGER

XML_NONPOSITIVE_INTEGER

public static final com.hp.hpl.jena.rdf.model.Resource XML_NONPOSITIVE_INTEGER

XML_NEGATIVE_INTEGER

public static final com.hp.hpl.jena.rdf.model.Resource XML_NEGATIVE_INTEGER

XML_LONG

public static final com.hp.hpl.jena.rdf.model.Resource XML_LONG

XML_INT

public static final com.hp.hpl.jena.rdf.model.Resource XML_INT

XML_SHORT

public static final com.hp.hpl.jena.rdf.model.Resource XML_SHORT

XML_NONNEGATIVE_INTEGER

public static final com.hp.hpl.jena.rdf.model.Resource XML_NONNEGATIVE_INTEGER

XML_UNSIGNED_LONG

public static final com.hp.hpl.jena.rdf.model.Resource XML_UNSIGNED_LONG

XML_UNSIGNED_INT

public static final com.hp.hpl.jena.rdf.model.Resource XML_UNSIGNED_INT

XML_UNSIGNED_SHORT

public static final com.hp.hpl.jena.rdf.model.Resource XML_UNSIGNED_SHORT

XML_POSITIVE_INTEGER

public static final com.hp.hpl.jena.rdf.model.Resource XML_POSITIVE_INTEGER

XML_TIME

public static final com.hp.hpl.jena.rdf.model.Resource XML_TIME

XML_DATE

public static final com.hp.hpl.jena.rdf.model.Resource XML_DATE

Constructor Detail

JenaUtils

public JenaUtils()

Method Detail

isXMLDatatype

public static boolean isXMLDatatype(java.lang.String s)

Returns whether or not the specified datatype is a known XSD datatype

Parameters:

s - String the datatype

Returns:

boolean true of the datatype is an XSD type, false otherwise

findMinCardinality

public static int findMinCardinality(com.hp.hpl.jena.rdf.model.Property p)

Returns the min cardinality of a property

Parameters:

p - Property the property

Returns:

int the mincardinality for the given property, -1 defines no set cardinality

findMaxCardinality

public static int findMaxCardinality(com.hp.hpl.jena.rdf.model.Property p)

Returns the max cardinality of a property

Parameters:

p - Property the property

Returns:

int the maxcardinality for the given property, -1 defines no set cardinality

isClass

public static boolean isClass(com.hp.hpl.jena.rdf.model.Resource aRes)

Returns whether or not the given resouce is a Class

Parameters:

aRes - Resource the resource

Returns:

boolean true if the resource is a class, false otherwise

isClass

public static boolean isClass(com.hp.hpl.jena.rdf.model.Resource aRes,
                              com.hp.hpl.jena.rdf.model.Model theModel)

Returns whether or not the given resouce is a Class

Parameters:

aRes - Resource the resource

theModel - Model the kb

Returns:

boolean true if the resource is a class, false otherwise

isProperty

public static boolean isProperty(com.hp.hpl.jena.rdf.model.Resource aRes)

Returns whether or not the given resource is a Property

Parameters:

aRes - Resource the resource

Returns:

boolean true if the resource is a proeprty, false otherwise

isRDFProperty

public static boolean isRDFProperty(com.hp.hpl.jena.rdf.model.Resource aRes)

Returns whether or not the given resource is defined as an rdf:Property

Parameters:

aRes - Resource the resource

Returns:

boolean true if its an rdf:Property, false otherwise

isDatatypeProperty

public static boolean isDatatypeProperty(com.hp.hpl.jena.rdf.model.Resource aRes)

Returns whether or not the given resource is defined as a datatype property

Parameters:

aRes - Resource the resource

Returns:

boolean true if its a datatype property, false otherwise

isDatatypeProperty

public static boolean isDatatypeProperty(com.hp.hpl.jena.rdf.model.Resource theRes,
                                         com.hp.hpl.jena.rdf.model.Model theModel)

Returns whether or not the given resource is defined as a datatype property

Parameters:

theRes - Resource the resource

theModel - Model the kb

Returns:

boolean true if its a datatype property, false otherwise

isObjectProperty

public static boolean isObjectProperty(com.hp.hpl.jena.rdf.model.Resource theRes)

Returns whether or not the given resource is defined as an object property

Parameters:

theRes - Resource the resource

Returns:

boolean true if its an object property, false otherwise

isObjectProperty

public static boolean isObjectProperty(com.hp.hpl.jena.rdf.model.Resource theRes,
                                       com.hp.hpl.jena.rdf.model.Model theModel)

Returns whether or not the given resource is defined as an object property

Parameters:

theRes - Resource the resource

theModel - Model the kb

Returns:

boolean true if its an object property, false otherwise

isOntology

public static boolean isOntology(com.hp.hpl.jena.rdf.model.Resource theRes)

Returns whether or not the given resource is defined as an owl:Ontology

Parameters:

theRes - Resource the resource

Returns:

boolean true if its an owl:Ontology, false otherwise

isOntology

public static boolean isOntology(com.hp.hpl.jena.rdf.model.Resource theRes,
                                 com.hp.hpl.jena.rdf.model.Model theModel)

Returns whether or not the given resource is defined as an owl:Ontology

Parameters:

theRes - Resource the resource

theModel - Model the kb

Returns:

boolean true if its an owl:Ontology, false otherwise

getAllSubClassesOf

public static java.util.Set getAllSubClassesOf(com.hp.hpl.jena.rdf.model.Resource r,
                                               boolean direct)

Returns all the subclasses of a given resource

Parameters:

r - Resource the resource

direct - boolean if true, return only direct subclasses, otherwise return all

Returns:

Set the set of all the subclasses

getAllSubClassesOf

public static java.util.Set getAllSubClassesOf(com.hp.hpl.jena.rdf.model.Resource r,
                                               com.hp.hpl.jena.rdf.model.Model m,
                                               boolean direct)

Returns all the subclasses of a given resource

Parameters:

r - Resource the resource

m - Model the model to use

direct - boolean if true, return only direct subclasses, otherwise return all

Returns:

Set the set of all subclasses

getAllSuperClassesOf

public static java.util.Set getAllSuperClassesOf(com.hp.hpl.jena.rdf.model.Resource r,
                                                 boolean direct)

Returns all the superclasses of a given resource

Parameters:

r - Resource the resource

Returns:

boolean the set of all the superclasses

getAllSuperPropertiesOf

public static java.util.Set getAllSuperPropertiesOf(com.hp.hpl.jena.rdf.model.Resource r,
                                                    com.hp.hpl.jena.rdf.model.Model m)

Returns all the superclasses of the given resource

Parameters:

r - Resource the resource

m - Model the model to search in

Returns:

Set the set of all superclasses

getAllSuperClassesOf

public static java.util.Set getAllSuperClassesOf(com.hp.hpl.jena.rdf.model.Resource r,
                                                 com.hp.hpl.jena.rdf.model.Model m,
                                                 boolean direct)

Returns all the superclasses of the given resource

Parameters:

r - Resource the resource

m - Model the model to search in

Returns:

Set the set of all superclasses

getAllSubPropertiesOf

public static java.util.Set getAllSubPropertiesOf(com.hp.hpl.jena.rdf.model.Resource r)

Returns all the subproperties of the given resource

Parameters:

r - Resource the resource

Returns:

Set the set of all subproperties of the resource

getAllSubPropertiesOf

public static java.util.Set getAllSubPropertiesOf(com.hp.hpl.jena.rdf.model.Resource r,
                                                  com.hp.hpl.jena.rdf.model.Model m)

Returns all the subproperties of the given resource

Parameters:

r - Resource the property resource

m - Model the model to use

Returns:

Set the set of all subproperties of the property resource

getType

public static com.hp.hpl.jena.rdf.model.Resource getType(com.hp.hpl.jena.rdf.model.Resource theRes,
                                                         boolean filter)

Returns the most specific type of an instance

Parameters:

theRes - Resource the instance

filter - boolean if true, filter out Anon types as well as OWL/DAML/RDF/RDFS types.

Returns:

Resource the first declared type, or null if no type declared

getType

public static com.hp.hpl.jena.rdf.model.Resource getType(com.hp.hpl.jena.rdf.model.Resource theRes,
                                                         com.hp.hpl.jena.rdf.model.Model theModel,
                                                         boolean filter)

Returns the most specific type of an instance

Parameters:

theRes - Resource the inst

theModel - Model the kb

filter - boolean if true, filter out Anon types as well as OWL/DAML/RDF/RDFS types.

Returns:

Resource the first declared type, or null if no type declared

getTypes

public static java.util.Set getTypes(com.hp.hpl.jena.rdf.model.Resource theRes,
                                     boolean filter)

Returns the set of all stated types for the given instance

Parameters:

theRes - Resource the instance

filter - boolean if true, filter out Anon types as well as OWL/DAML/RDF/RDFS types.

Returns:

Vector the list of all types

getTypes

public static java.util.Set getTypes(com.hp.hpl.jena.rdf.model.Resource theRes,
                                     com.hp.hpl.jena.rdf.model.Model theModel,
                                     boolean filter)

getAllTypes

public static java.util.Set getAllTypes(com.hp.hpl.jena.rdf.model.Resource theRes,
                                        boolean filter)

Return all types of an instance

Parameters:

theRes - Resource the instance resource

filter - boolean if true, filter out OWL/RDF/RDFS/DAML types

Returns:

Set the set of all types for the instance

getAllTypes

public static java.util.Set getAllTypes(com.hp.hpl.jena.rdf.model.Resource theRes,
                                        com.hp.hpl.jena.rdf.model.Model theModel,
                                        boolean filter)

Return all types of an instance

Parameters:

theRes - Resource the inst

theModel - Model the kb

filter - boolean if true, filter out OWL/RDF/RDFS/DAML types

Returns:

Set the set of all types for the instance

getRanges

public static java.util.Set getRanges(com.hp.hpl.jena.rdf.model.Property aProp,
                                      com.hp.hpl.jena.rdf.model.Resource theClass)

Returns all the ranges for a property with respect to a given class

Parameters:

aProp - Property the property

theClass - Resource the class the property belongs to

Returns:

Set the set of all ranges for the property on the specified class

getRanges

public static java.util.Set getRanges(com.hp.hpl.jena.rdf.model.Property aProp,
                                      com.hp.hpl.jena.rdf.model.Resource theClass,
                                      com.hp.hpl.jena.rdf.model.Model theModel)

Returns all the ranges for a property with respect to a given class

Parameters:

aProp - Property the property

theClass - Resource the class the property belonds tot

theModel - Model the model to use

Returns:

Set the set of all ranges for the property on the specified class

getDeclaredRanges

public static java.util.Set getDeclaredRanges(com.hp.hpl.jena.rdf.model.Property theProp)

Returns all the explictly declared ranges for the property

Parameters:

theProp - Property the property

Returns:

Set the set of all ranges for the property

getDeclaredRanges

public static java.util.Set getDeclaredRanges(com.hp.hpl.jena.rdf.model.Property theProp,
                                              com.hp.hpl.jena.rdf.model.Model theModel)

Returns all the explicitly declared ranges for the property

Parameters:

prop - Property the property

theModel - Model the model to use

Returns:

Set the set of all ranges for the property

getPrettyRDF

public static java.lang.String getPrettyRDF(com.hp.hpl.jena.rdf.model.Model m)

Given a Jena model, return the pretty rdf/xml representation of the model NOTE: This function is not complete, dont use, use the jena writer pretty print feature

Parameters:

m - Model the model

Returns:

String the string rdf/xml representation of the given model

isValidRDFId

public static boolean isValidRDFId(java.lang.String theId)

Returns whether or not the specified string is a valid RDF id

Parameters:

theId - String the id

Returns:

boolean returns true if valid id, false otherwise

getDeclaredProps

public static java.util.Set getDeclaredProps(com.hp.hpl.jena.rdf.model.Resource aRes)

Returns all the properties that are declared for a given resource

Parameters:

aRes - Resource the resource

Returns:

Set the set of all declared properties for the resource

getDeclaredProps

public static java.util.Set getDeclaredProps(com.hp.hpl.jena.rdf.model.Resource aRes,
                                             com.hp.hpl.jena.rdf.model.Model theModel)

Returns all the declared properties for a given resource

Parameters:

aRes - Resource the resource

Returns:

Set the set of all declared properties for the given resource

getQName

public static java.lang.String getQName(com.hp.hpl.jena.rdf.model.Resource res)

Returns the qname for the given resource

Parameters:

res - Resource the resource

Returns:

String the qname for the specified resource

isLanguageTerm

public static boolean isLanguageTerm(com.hp.hpl.jena.rdf.model.Resource r)

Returns whether the given term is in the RDF, RDFS, DAML or OWL namespaces

Parameters:

r - Resource

Returns:

boolean

getLocalName

public static java.lang.String getLocalName(java.lang.String name)

Returns the local name for the specified RDF Id

Parameters:

name - String - the id

Returns:

String - the corresponding local name

getLabel

public static java.lang.String getLabel(com.hp.hpl.jena.rdf.model.Resource theResource)

Return the label for a resource with English as the preferred language

Parameters:

theResource - Resource

Returns:

String the label of the resource, or null if one is not found

getLabel

public static java.lang.String getLabel(com.hp.hpl.jena.rdf.model.Resource theResource,
                                        java.lang.String thePreferredLang)

Get the label for a resource using the given preferred language

Parameters:

theResource - Resource the resource

thePreferredLang - String the preferred language

Returns:

String the label of the resource in the preferred language, or null if one is not found

getComment

public static java.lang.String getComment(com.hp.hpl.jena.rdf.model.Resource theResource)

Get the comment for a resource

Parameters:

theResource - Resource the resource

Returns:

String the comment, or null if it does not have one

isIndividual

public static boolean isIndividual(com.hp.hpl.jena.rdf.model.Resource theResource)

Return whether or not the given resource is an individual

Parameters:

theResource - Resource the resource

Returns:

boolean true if its an individual, false if not

listIndividuals

public static java.util.Iterator listIndividuals(com.hp.hpl.jena.rdf.model.Model theModel)

List all individuals in the given mode

Parameters:

theModel - Model the model

Returns:

Iterator an iterator over the list of individuals

isSubClassOf

public static boolean isSubClassOf(com.hp.hpl.jena.rdf.model.Resource theChild,
                                   com.hp.hpl.jena.rdf.model.Resource theParent)

Returns whether or not the first resource is a subclass of the second

Parameters:

theChild - Resource the child

theParent - Resource the parent

Returns:

boolean true if the child is a subclass of the parent, false otherwise

isType

public static boolean isType(com.hp.hpl.jena.rdf.model.Resource theInst,
                             com.hp.hpl.jena.rdf.model.Resource theType)

Returns whether or not the instance is of the specified type

Parameters:

theInst - Resource the instance

theType - Resource the type

Returns:

boolean true if the instance rdf:type theType, false otherwise

isType

public static boolean isType(com.hp.hpl.jena.rdf.model.Resource theInst,
                             com.hp.hpl.jena.rdf.model.Resource theType,
                             com.hp.hpl.jena.rdf.model.Model theModel)

Returns whether or not the instance is of the specified type

Parameters:

theInst - Resource the inst

theType - Resource the type

theModel - Model the kb

Returns:

boolean true if the instance rdf:type theType, false otherwise

collectResourcesFromRDFList

public static java.util.Set collectResourcesFromRDFList(com.hp.hpl.jena.rdf.model.Resource theList)

Return all the resources in a rdf list (like seq, bag or alt) in a Set

Parameters:

theList - Resource the head of the list

Returns:

Set the resources in the list

listClasses

public static java.util.Iterator listClasses(com.hp.hpl.jena.rdf.model.Model theModel)

Returns a list of all classes in the model

Parameters:

theModel - Model the model

Returns:

Iterator an iterator over the list of all classes

listProperties

public static java.util.Iterator listProperties(com.hp.hpl.jena.rdf.model.Model theModel)

List all properties in the model

Parameters:

theModel - Model the model

Returns:

Iterator an iterator over the list of all properties in the model