org.w3c.rdf.implementation.model
Class ModelImpl

java.lang.Object
  |
  +--org.w3c.rdf.implementation.model.ModelImpl

All Implemented Interfaces:

Digest, Digestable, Model, RDFNode, Resource

public class ModelImpl

extends java.lang.Object

implements Model, Digestable, Digest

Fields inherited from interface org.w3c.rdf.digest.Digest

MD5, SHA1

Constructor Summary

	ModelImpl()
	ModelImpl(NodeFactory f)
protected	ModelImpl(java.lang.String uri, java.util.Hashtable triples, FindIndex findIndex, boolean shared)

Method Summary

void	add(Resource subject, Resource predicate, RDFNode object) Adds a new triple to the model.
void	add(Resource subject, Resource predicate, java.lang.String object) Adds a new triple to the model.
void	add(Statement t) Adds a new triple to the model.
java.lang.Object	clone()
boolean	contains(Statement t) Tests if the model contains the given triple.
Model	create() Creates empty model of the same Class
Model	duplicate() Clone the model.
java.util.Enumeration	elements() Enumerate triples
Model	find(Resource subject, Resource predicate, RDFNode object) General method to search for triples.
Digest	getDigest()
java.lang.String	getDigestAlgorithm()
byte[]	getDigestBytes()
java.lang.String	getLabel() The formal string label of the node.
java.lang.String	getLocalName() Returns the local name of the resource.
java.lang.String	getNamespace() Returns the namespace of the resource.
NodeFactory	getNodeFactory() Returns the node factory for this model
java.lang.String	getSourceURI() Returns current base URI setting.
java.lang.String	getURI() Returns the URI of the resource.
boolean	isEmpty() true if the model contains no triples
boolean	isMutable() True if the model supports add() and remove() methods.
void	remove(Statement t) Removes the triple from the model.
void	setSourceURI(java.lang.String uri) Set a base URI for the message.
int	size() Number of triples in the model
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ModelImpl

public ModelImpl()

ModelImpl

public ModelImpl(NodeFactory f)

ModelImpl

protected ModelImpl(java.lang.String uri,
                    java.util.Hashtable triples,
                    FindIndex findIndex,
                    boolean shared)

Method Detail

setSourceURI

public void setSourceURI(java.lang.String uri)

Set a base URI for the message. Affects creating of new resources and serialization syntax. null is just alright, meaning that the serializer will use always rdf:about and never rdf:ID

Specified by:

setSourceURI in interface Model

getSourceURI

public java.lang.String getSourceURI()

Returns current base URI setting.

Specified by:

getSourceURI in interface Model

size

public int size()

Number of triples in the model

Specified by:

size in interface Model

Returns:

number of triples

isEmpty

public boolean isEmpty()

Description copied from interface: Model

true if the model contains no triples

Specified by:

isEmpty in interface Model

elements

public java.util.Enumeration elements()

Enumerate triples

Specified by:

elements in interface Model

contains

public boolean contains(Statement t)

Tests if the model contains the given triple.

Specified by:

contains in interface Model

Returns:

true if the triple belongs to the model; false otherwise.

See Also:

Statement

add

public void add(Resource subject,
                Resource predicate,
                java.lang.String object)
         throws ModelException

Adds a new triple to the model. A literal is created out of the string parameter object. This method is just a shortcut.

See Also:

Resource

add

public void add(Resource subject,
                Resource predicate,
                RDFNode object)
         throws ModelException

Adds a new triple to the model. The object of the triple is an RDFNode.

See Also:

Resource, RDFNode

add

public void add(Statement t)
         throws ModelException

Adds a new triple to the model.

Specified by:

add in interface Model

See Also:

Statement

remove

public void remove(Statement t)
            throws ModelException

Removes the triple from the model.

Specified by:

remove in interface Model

See Also:

Statement

find

public Model find(Resource subject,
                  Resource predicate,
                  RDFNode object)
           throws ModelException

General method to search for triples. null input for any parameter will match anything.

Example: Model result = m.find( null, RDF.type, new Resource("http://...#MyClass") )

finds all instances of the class MyClass

Specified by:

find in interface Model

See Also:

Resource, RDFNode

duplicate

public Model duplicate()

Clone the model.

Specified by:

duplicate in interface Model

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object

create

public Model create()

Creates empty model of the same Class

Specified by:

create in interface Model

getNodeFactory

public NodeFactory getNodeFactory()

Description copied from interface: Model

Returns the node factory for this model

Specified by:

getNodeFactory in interface Model

getLabel

public java.lang.String getLabel()
                          throws ModelException

Description copied from interface: RDFNode

The formal string label of the node. URI in case of a resource, string in case of a literal.

Specified by:

getLabel in interface RDFNode

getNamespace

public java.lang.String getNamespace()

Description copied from interface: Resource

Returns the namespace of the resource. May return null.

Specified by:

getNamespace in interface Resource

Following copied from interface: org.w3c.rdf.model.Resource

Returns:

the namespace of the resource

See Also:

Statement, Model

getLocalName

public java.lang.String getLocalName()
                              throws ModelException

Description copied from interface: Resource

Returns the local name of the resource. May not return null.

Specified by:

getLocalName in interface Resource

Following copied from interface: org.w3c.rdf.model.Resource

Returns:

the local name of the resource

See Also:

Statement, Model

getDigest

public Digest getDigest()

Specified by:

getDigest in interface Digestable

Following copied from interface: org.w3c.rdf.digest.Digestable

Returns:

a Digest

isMutable

public boolean isMutable()

Description copied from interface: Model

True if the model supports add() and remove() methods. A model may change behavior of this function over time.

Specified by:

isMutable in interface Model

getURI

public java.lang.String getURI()
                        throws ModelException

Description copied from interface: Resource

Returns the URI of the resource. Triples and models must implement this method in a standard way.

Specified by:

getURI in interface Resource

Following copied from interface: org.w3c.rdf.model.Resource

Returns:

the URI of the resource

See Also:

Statement, Model

getDigestAlgorithm

public java.lang.String getDigestAlgorithm()

Specified by:

getDigestAlgorithm in interface Digest

getDigestBytes

public byte[] getDigestBytes()
                      throws DigestException

Specified by:

getDigestBytes in interface Digest

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object