Package org.apache.jena.rdf.model.impl

Class ResourceImpl

java.lang.Object

org.apache.jena.enhanced.Polymorphic<RDFNode>

org.apache.jena.enhanced.EnhNode

org.apache.jena.rdf.model.impl.ResourceImpl

All Implemented Interfaces:

FrontsNode, RDFNode, Resource

Direct Known Subclasses:

ContainerImpl, OntResourceImpl, PropertyImpl, RDFListImpl, ReifiedStatementImpl

public class ResourceImpl
extends EnhNode
implements Resource

An implementation of Resource.

Field Summary

Fields

Modifier and Type	Field	Description
static Implementation	factory
static Implementation	rdfNodeFactory

Constructor Summary

Constructors

Constructor	Description
ResourceImpl()	Creates new ResourceImpl
ResourceImpl(java.lang.String uri)
ResourceImpl(java.lang.String nameSpace, java.lang.String localName)
ResourceImpl(java.lang.String nameSpace, java.lang.String localName, ModelCom m)
ResourceImpl(java.lang.String uri, ModelCom m)
ResourceImpl(Node n, EnhGraph m)
ResourceImpl(Node n, ModelCom m)	the main constructor: make a new Resource in the given model, rooted in the given node.
ResourceImpl(AnonId id)
ResourceImpl(AnonId id, ModelCom m)
ResourceImpl(ModelCom m)
ResourceImpl(Resource r, ModelCom m)
ResourceImpl(Statement statement, ModelCom m)

Method Summary

Modifier and Type	Method	Description
Resource	abort()	Abort the transaction in the associated model.
Resource	addLiteral(Property p, boolean o)	Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model.
Resource	addLiteral(Property p, char o)	Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model.
Resource	addLiteral(Property p, double o)	Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model.
Resource	addLiteral(Property p, float o)	Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model.
Resource	addLiteral(Property p, long o)	Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model.
Resource	addLiteral(Property p, java.lang.Object o)	Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model.
Resource	addLiteral(Property p, Literal o)	Add the property p with the pre-constructed Literal value o to this resource, ie add (this, p, o) to this's model.
Resource	addProperty(Property p, double o)
Resource	addProperty(Property p, float o)
Resource	addProperty(Property p, long o)
Resource	addProperty(Property p, java.lang.String o)	Add a property to this resource.
Resource	addProperty(Property p, java.lang.String o, java.lang.String l)	Add a property to this resource.
Resource	addProperty(Property p, java.lang.String lexicalForm, RDFDatatype datatype)	Add a property to this resource.
Resource	addProperty(Property p, RDFNode o)	Add a property to this resource.
Literal	asLiteral()	If this node is a Literal, answer that literal; otherwise throw an exception.
Resource	asResource()	If this node is a Resource, answer that resource; otherwise throw an exception.
Resource	begin()	Begin a transaction in the associated model.
Resource	commit()	Commit the transaction in the associated model.
AnonId	getId()	Returns an a unique identifier for anonymous resources.
java.lang.String	getLocalName()	Returns the localname of this resource within its namespace if it is a URI else null.
Model	getModel()	Return the model associated with this resource.
java.lang.String	getNameSpace()	Returns the namespace associated with this resource if it is a URI, else return null.
Statement	getProperty(Property p)	Answer some statement (this, p, O) in the associated model.
Statement	getProperty(Property p, java.lang.String lang)	Answer some statement (this, p, O), in language lang, in the associated model.
Resource	getPropertyResourceValue(Property p)	Answer some resource R for which this.hasProperty( p, R ), or null if no such R exists.
Statement	getRequiredProperty(Property p)	Get a property value of this resource.
Statement	getRequiredProperty(Property p, java.lang.String lang)	Get a property value of this resource in a specified language.
Statement	getStmtTerm()	Return the statement of this resource, or null if it is not an RDF-star triple term.
java.lang.String	getURI()	Return the URI of the resource, or null if it's a bnode or statement.
boolean	hasLiteral(Property p, boolean o)	Answer true iff this resource has the value o for property p.
boolean	hasLiteral(Property p, char o)	Answer true iff this resource has the value o for property p.
boolean	hasLiteral(Property p, double o)	Answer true iff this resource has the value o for property p.
boolean	hasLiteral(Property p, float o)	Answer true iff this resource has the value o for property p.
boolean	hasLiteral(Property p, long o)	Answer true iff this resource has the value o for property p.
boolean	hasLiteral(Property p, java.lang.Object o)	Answer true iff this resource has the value o for property p.
boolean	hasProperty(Property p)	Determine whether this resource has any values for a given property.
boolean	hasProperty(Property p, java.lang.String o)	Test if this resource has a given property with a given value.
boolean	hasProperty(Property p, java.lang.String o, java.lang.String l)	Test if this resource has a given property with a given value.
boolean	hasProperty(Property p, RDFNode o)	Test if this resource has a given property with a given value.
boolean	hasURI(java.lang.String uri)	Answer true iff this Resource is a URI resource with the given URI.
Resource	inModel(Model m)	Override RDFNode.inModel() to produce a statically-typed Resource in the given Model.
StmtIterator	listProperties()	Return an iterator over all the properties of this resource.
StmtIterator	listProperties(Property p)	List all the values of the property p.
StmtIterator	listProperties(Property p, java.lang.String lang)	Return an iterator over all the properties of this resource with a specific language.
Resource	removeAll(Property p)	Delete all the statements with predicate p for this resource from its associated model.
Resource	removeProperties()	Delete all the properties for this resource from the associated model.
java.lang.String	toString()	Return a string representation of the resource.
java.lang.Object	visitWith(RDFVisitor rv)	Apply the appropriate method of the visitor to this node's content and return the result.

Methods inherited from class org.apache.jena.enhanced.EnhNode

as, asNode, canAs, equals, getGraph, hashCode, isAnon, isLiteral, isResource, isStmtResource, isURIResource, isValid, viewAs

Methods inherited from class org.apache.jena.enhanced.Polymorphic

addView, supports

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.jena.graph.FrontsNode

asNode

Methods inherited from interface org.apache.jena.rdf.model.RDFNode

as, canAs, isAnon, isLiteral, isResource, isStmtResource, isURIResource

Methods inherited from interface org.apache.jena.rdf.model.Resource

equals

Field Detail

factory

public static final Implementation factory

rdfNodeFactory

public static final Implementation rdfNodeFactory

Constructor Detail

ResourceImpl

public ResourceImpl(Node n,
                    ModelCom m)

the main constructor: make a new Resource in the given model, rooted in the given node. NOT FOR PUBLIC USE - used in ModelCom [and ContainerImpl]

ResourceImpl

public ResourceImpl()

Creates new ResourceImpl

ResourceImpl

public ResourceImpl(ModelCom m)

ResourceImpl

public ResourceImpl(Node n,
                    EnhGraph m)

ResourceImpl

public ResourceImpl(java.lang.String uri)

ResourceImpl

public ResourceImpl(java.lang.String nameSpace,
                    java.lang.String localName)

ResourceImpl

public ResourceImpl(AnonId id)

ResourceImpl

public ResourceImpl(AnonId id,
                    ModelCom m)

ResourceImpl

public ResourceImpl(java.lang.String uri,
                    ModelCom m)

ResourceImpl

public ResourceImpl(Resource r,
                    ModelCom m)

ResourceImpl

public ResourceImpl(java.lang.String nameSpace,
                    java.lang.String localName,
                    ModelCom m)

ResourceImpl

public ResourceImpl(Statement statement,
                    ModelCom m)

Method Detail

visitWith

public java.lang.Object visitWith(RDFVisitor rv)

Description copied from interface: RDFNode

Apply the appropriate method of the visitor to this node's content and return the result.

Specified by:

visitWith in interface RDFNode

Parameters:

rv - an RDFVisitor with a method for URI/blank/literal nodes

Returns:

the result returned by the selected method

asResource

public Resource asResource()

Description copied from interface: RDFNode

If this node is a Resource, answer that resource; otherwise throw an exception.

Specified by:

asResource in interface RDFNode

asLiteral

public Literal asLiteral()

Description copied from interface: RDFNode

If this node is a Literal, answer that literal; otherwise throw an exception.

Specified by:

asLiteral in interface RDFNode

inModel

public Resource inModel(Model m)

Description copied from interface: Resource

Override RDFNode.inModel() to produce a statically-typed Resource in the given Model.

Specified by:

inModel in interface RDFNode

Specified by:

inModel in interface Resource

Parameters:

m - a model to move the node to

Returns:

this, if it's already in m (or no model), a copy in m otherwise

getId

public AnonId getId()

Description copied from interface: Resource

Returns an a unique identifier for anonymous resources.

The id is unique within the scope of a particular implementation. All models within an implementation will use the same id for the same anonymous resource.

This method is undefined if called on resources which are not anonymous and may raise an exception.

Specified by:

getId in interface Resource

Returns:

A unique id for an anonymous resource.

getURI

public java.lang.String getURI()

Description copied from interface: Resource

Return the URI of the resource, or null if it's a bnode or statement.

Specified by:

getURI in interface Resource

Returns:

The URI of the resource, or null if it's a bnode or statement.

getStmtTerm

public Statement getStmtTerm()

Description copied from interface: Resource

Return the statement of this resource, or null if it is not an RDF-star triple term. This is not a resource for a reified statement.

Specified by:

getStmtTerm in interface Resource

Returns:

The statement of this resource,or null if it is not an RDF-star triple term.

getNameSpace

public java.lang.String getNameSpace()

Description copied from interface: Resource

Returns the namespace associated with this resource if it is a URI, else return null.

The namespace is suitable for use with localname in in RDF/XML. XML does not allow QNames to start with a digit and this method reflects that restriction in the values for namespace and localname.

See functions in SplitIRI for other split algorithms.

Specified by:

getNameSpace in interface Resource

Returns:

The namespace for this resource or null.

getLocalName

public java.lang.String getLocalName()

Description copied from interface: Resource

Returns the localname of this resource within its namespace if it is a URI else null.

Note: XML requires QNames to start with a letter, not a digit, and this method reflects that restriction.

See functions in SplitIRI for other split algorithms.

Specified by:

getLocalName in interface Resource

Returns:

The localname of this property within its namespace.

hasURI

public boolean hasURI(java.lang.String uri)

Description copied from interface: Resource

Answer true iff this Resource is a URI resource with the given URI. Using this is preferred to using getURI() and .equals().

Specified by:

hasURI in interface Resource

toString

public java.lang.String toString()

Description copied from interface: Resource

Return a string representation of the resource. Returns the URI of the resource unless the resource is anonymous in which case it returns the id of the resource enclosed in square brackets.

Specified by:

toString in interface RDFNode

Specified by:

toString in interface Resource

Overrides:

toString in class java.lang.Object

Returns:

Return a string representation of the resource. if it is anonymous.

getRequiredProperty

public Statement getRequiredProperty(Property p)

Description copied from interface: Resource

Get a property value of this resource.

The model associated with the resource instance is searched for statements whose subject is this resource and whose predicate is p. If such a statement is found, it is returned. If several such statements are found, any one may be returned. If no such statements are found, an exception is thrown.

Specified by:

getRequiredProperty in interface Resource

Parameters:

p - The property sought.

Returns:

some (this, p, ?O) statement if one exists

getRequiredProperty

public Statement getRequiredProperty(Property p,
                                     java.lang.String lang)

Description copied from interface: Resource

Get a property value of this resource in a specified language.

The model associated with the resource instance is searched for statements whose subject is this resource and whose predicate is p. If such a statement is found, it is returned. If several such statements are found, any one may be returned. If no such statements are found, an exception is thrown.

Specified by:

getRequiredProperty in interface Resource

Parameters:

p - The property sought.

lang - The language of the statement with the property sought.

Returns:

some (this, p, ?O@lang) statement if one exists

getProperty

public Statement getProperty(Property p)

Description copied from interface: Resource

Answer some statement (this, p, O) in the associated model. If there are several such statements, any one of them may be returned. If no such statements exist, null is returned - in this is differs from getRequiredProperty.

Specified by:

getProperty in interface Resource

Parameters:

p - the property sought

Returns:

a statement (this, p, O), or null if no such statements exist here

getProperty

public Statement getProperty(Property p,
                             java.lang.String lang)

Description copied from interface: Resource

Answer some statement (this, p, O), in language lang, in the associated model. If there are several such statements, any one of them may be returned. If no such statements exist, null is returned - in this it differs from getRequiredProperty.

Specified by:

getProperty in interface Resource

Parameters:

p - The property sought.

lang - The language of the property sought.

Returns:

some (this, p, ?O@lang) statement if one exists

listProperties

public StmtIterator listProperties(Property p)

Description copied from interface: Resource

List all the values of the property p.

Returns an iterator over all the statements in the associated model whose subject is this resource and whose predicate is p.

Specified by:

listProperties in interface Resource

Parameters:

p - The predicate sought.

Returns:

An iterator over the statements.

listProperties

public StmtIterator listProperties(Property p,
                                   java.lang.String lang)

Description copied from interface: Resource

Return an iterator over all the properties of this resource with a specific language.

The model associated with this resource is searched and an iterator is returned which iterates over all the statements which have this resource as a subject.

Specified by:

listProperties in interface Resource

Returns:

An iterator over all the statements about this object.

listProperties

public StmtIterator listProperties()

Description copied from interface: Resource

Return an iterator over all the properties of this resource.

The model associated with this resource is search and an iterator is returned which iterates over all the statements which have this resource as a subject.

Specified by:

listProperties in interface Resource

Returns:

An iterator over all the statements about this object.

addLiteral

public Resource addLiteral(Property p,
                           boolean o)

Description copied from interface: Resource

Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model. Answer this resource. The typed literal is equal to one constructed by using this.getModel().createTypedLiteral(o).

Specified by:

addLiteral in interface Resource

addProperty

public Resource addProperty(Property p,
                            long o)

addLiteral

public Resource addLiteral(Property p,
                           long o)

Description copied from interface: Resource

Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model. Answer this resource. The typed literal is equal to one constructed by using this.getModel().createTypedLiteral(o).

Specified by:

addLiteral in interface Resource

addLiteral

public Resource addLiteral(Property p,
                           char o)

Description copied from interface: Resource

Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model. Answer this resource. The typed literal is equal to one constructed by using this.getModel().createTypedLiteral(o).

Specified by:

addLiteral in interface Resource

addProperty

public Resource addProperty(Property p,
                            float o)

addProperty

public Resource addProperty(Property p,
                            double o)

addLiteral

public Resource addLiteral(Property p,
                           double o)

Description copied from interface: Resource

Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model. Answer this resource. The typed literal is equal to one constructed by using this.getModel().createTypedLiteral(o).

Specified by:

addLiteral in interface Resource

addLiteral

public Resource addLiteral(Property p,
                           float o)

Description copied from interface: Resource

Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model. Answer this resource. The typed literal is equal to one constructed by using this.getModel().createTypedLiteral(o).

Specified by:

addLiteral in interface Resource

addProperty

public Resource addProperty(Property p,
                            java.lang.String o)

Description copied from interface: Resource

Add a property to this resource.

A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.

Specified by:

addProperty in interface Resource

Parameters:

p - The property to be added.

o - The value of the property to be added.

Returns:

This resource to allow cascading calls.

addProperty

public Resource addProperty(Property p,
                            java.lang.String o,
                            java.lang.String l)

Description copied from interface: Resource

Add a property to this resource.

A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.

Specified by:

addProperty in interface Resource

Parameters:

p - The property to be added.

o - The value of the property to be added.

l - the language of the property

Returns:

This resource to allow cascading calls.

addProperty

public Resource addProperty(Property p,
                            java.lang.String lexicalForm,
                            RDFDatatype datatype)

Description copied from interface: Resource

Add a property to this resource.

A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.

Specified by:

addProperty in interface Resource

Parameters:

p - The property to be added.

lexicalForm - The lexical form of the literal

datatype - The datatype

Returns:

This resource to allow cascading calls.

addLiteral

public Resource addLiteral(Property p,
                           java.lang.Object o)

Description copied from interface: Resource

Add the property p with the typed-literal value o to this resource, ie add (this, p, typed(o)) to this's model. Answer this resource. The typed literal is equal to one constructed by using this.getModel().createTypedLiteral(o).

Specified by:

addLiteral in interface Resource

addLiteral

public Resource addLiteral(Property p,
                           Literal o)

Description copied from interface: Resource

Add the property p with the pre-constructed Literal value o to this resource, ie add (this, p, o) to this's model. Answer this resource. NOTE thjat this is distinct from the other addLiteral methods in that the Literal is not turned into a Literal.

Specified by:

addLiteral in interface Resource

addProperty

public Resource addProperty(Property p,
                            RDFNode o)

Description copied from interface: Resource

Add a property to this resource.

A statement with this resource as the subject, p as the predicate and o as the object is added to the model associated with this resource.

Specified by:

addProperty in interface Resource

Parameters:

p - The property to be added.

o - The value of the property to be added.

Returns:

This resource to allow cascading calls.

hasProperty

public boolean hasProperty(Property p)

Description copied from interface: Resource

Determine whether this resource has any values for a given property.

Specified by:

hasProperty in interface Resource

Parameters:

p - The property sought.

Returns:

true if and only if this resource has at least one value for the property.

hasLiteral

public boolean hasLiteral(Property p,
                          boolean o)

Description copied from interface: Resource

Answer true iff this resource has the value o for property p. o is interpreted as a typed literal with the appropriate RDF type.

Specified by:

hasLiteral in interface Resource

hasLiteral

public boolean hasLiteral(Property p,
                          long o)

Description copied from interface: Resource

Answer true iff this resource has the value o for property p. o is interpreted as a typed literal with the appropriate RDF type.

Specified by:

hasLiteral in interface Resource

hasLiteral

public boolean hasLiteral(Property p,
                          char o)

Description copied from interface: Resource

Answer true iff this resource has the value o for property p. o is interpreted as a typed literal with the appropriate RDF type.

Specified by:

hasLiteral in interface Resource

hasLiteral

public boolean hasLiteral(Property p,
                          double o)

Description copied from interface: Resource

Answer true iff this resource has the value o for property p. o is interpreted as a typed literal with the appropriate RDF type.

Specified by:

hasLiteral in interface Resource

hasLiteral

public boolean hasLiteral(Property p,
                          float o)

Description copied from interface: Resource

Answer true iff this resource has the value o for property p. o is interpreted as a typed literal with the appropriate RDF type.

Specified by:

hasLiteral in interface Resource

hasProperty

public boolean hasProperty(Property p,
                           java.lang.String o)

Description copied from interface: Resource

Test if this resource has a given property with a given value.

Specified by:

hasProperty in interface Resource

Parameters:

p - The property sought.

o - The value of the property sought.

Returns:

true if and only if this resource has property p with value o.

hasProperty

public boolean hasProperty(Property p,
                           java.lang.String o,
                           java.lang.String l)

Description copied from interface: Resource

Test if this resource has a given property with a given value.

Specified by:

hasProperty in interface Resource

Parameters:

p - The property sought.

o - The value of the property sought.

l - The language of the property sought.

Returns:

true if and only if this resource has property p with value o.

hasLiteral

public boolean hasLiteral(Property p,
                          java.lang.Object o)

Description copied from interface: Resource

Answer true iff this resource has the value o for property p. o is interpreted as a typed literal with the appropriate RDF type.

Specified by:

hasLiteral in interface Resource

hasProperty

public boolean hasProperty(Property p,
                           RDFNode o)

Description copied from interface: Resource

Test if this resource has a given property with a given value.

Specified by:

hasProperty in interface Resource

Parameters:

p - The property sought.

o - The value of the property sought.

Returns:

true if and only if this resource has property p with value o.

removeProperties

public Resource removeProperties()

Description copied from interface: Resource

Delete all the properties for this resource from the associated model.

Specified by:

removeProperties in interface Resource

Returns:

This resource to permit cascading.

removeAll

public Resource removeAll(Property p)

Description copied from interface: Resource

Delete all the statements with predicate p for this resource from its associated model.

Specified by:

removeAll in interface Resource

Parameters:

p - the property to remove

Returns:

this resource, to permit cascading

begin

public Resource begin()

Description copied from interface: Resource

Begin a transaction in the associated model.

Specified by:

begin in interface Resource

Returns:

This resource to permit cascading.

abort

public Resource abort()

Description copied from interface: Resource

Abort the transaction in the associated model.

Specified by:

abort in interface Resource

Returns:

This resource to permit cascading.

commit

public Resource commit()

Description copied from interface: Resource

Commit the transaction in the associated model.

Specified by:

commit in interface Resource

Returns:

This resource to permit cascading.

getModel

public Model getModel()

Description copied from interface: RDFNode

Return the model associated with this resource. If the Resource was not created by a Model, the result may be null.

Specified by:

getModel in interface RDFNode

Returns:

The model associated with this resource.

getPropertyResourceValue

public Resource getPropertyResourceValue(Property p)

Description copied from interface: Resource

Answer some resource R for which this.hasProperty( p, R ), or null if no such R exists.

Specified by:

getPropertyResourceValue in interface Resource