org.jrdf.graph
Class AbstractTripleFactory

java.lang.Object
  org.jrdf.graph.AbstractTripleFactory

All Implemented Interfaces:

TripleFactory

public abstract class AbstractTripleFactory

extends Object

implements TripleFactory

The base implementation of the Triple Factory which adds to a given graph reified statements, containers and collections.

Version:

$Revision: 1.1 $

Author:

Paul Gearon, Andrew Newman

Field Summary

protected GraphElementFactory	elementFactory The graph element factory.
protected Graph	graph The graph that this factory constructs nodes for.

Constructor Summary

AbstractTripleFactory()

Method Summary

void	addAlternative(SubjectNode subjectNode, Alternative alternative) Inserts a alternative using the given subject.
void	addBag(SubjectNode subjectNode, Bag bag) Inserts a bag using the given subject.
void	addCollection(SubjectNode firstNode, Collection collection) Inserts a collection using the given subject.
void	addSequence(SubjectNode subjectNode, Sequence sequence) Inserts a sequence using the given subject.
void	reifyTriple(SubjectNode subjectNode, PredicateNode predicateNode, ObjectNode objectNode, SubjectNode reificationNode) Reifies a triple.
void	reifyTriple(Triple triple, SubjectNode reificationNode) Creates a reification of a triple.

Methods inherited from class java.lang.Object

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

Field Detail

graph

protected Graph graph

The graph that this factory constructs nodes for.

elementFactory

protected GraphElementFactory elementFactory

The graph element factory.

Constructor Detail

AbstractTripleFactory

public AbstractTripleFactory()

Method Detail

reifyTriple

public void reifyTriple(SubjectNode subjectNode,
                        PredicateNode predicateNode,
                        ObjectNode objectNode,
                        SubjectNode reificationNode)
                 throws TripleFactoryException,
                        AlreadyReifiedException

Reifies a triple. A triple made up of the first three nodes is added to graph and the reificationNode is used to reify the triple.

Specified by:

reifyTriple in interface TripleFactory

Parameters:

subjectNode - the subject of the triple.

predicateNode - the predicate of the triple.

objectNode - the object of the triple.

reificationNode - a node denoting the reified triple.

Throws:

TripleFactoryException - If the resource failed to be created.

AlreadyReifiedException - If there was already a triple URI for the given triple.

reifyTriple

public void reifyTriple(Triple triple,
                        SubjectNode reificationNode)
                 throws TripleFactoryException,
                        AlreadyReifiedException

Creates a reification of a triple. The triple added to the graph and the reificationNode is used to reify the triple.

Specified by:

reifyTriple in interface TripleFactory

Parameters:

triple - the triple to be reified.

reificationNode - a node denoting the reified triple.

Throws:

TripleFactoryException - If the resource failed to be created.

AlreadyReifiedException - If there was already a triple URI for the given triple.

addAlternative

public void addAlternative(SubjectNode subjectNode,
                           Alternative alternative)
                    throws TripleFactoryException

Description copied from interface: TripleFactory

Inserts a alternative using the given subject. The subject is also the object of a proceeding statement that identifies the container.

Specified by:

addAlternative in interface TripleFactory

Parameters:

subjectNode - the subject node of the triple.

alternative - the alternative to add.

Throws:

TripleFactoryException - If the resources were failed to be added.

addBag

public void addBag(SubjectNode subjectNode,
                   Bag bag)
            throws TripleFactoryException

Description copied from interface: TripleFactory

Inserts a bag using the given subject. The subject is also the object of a proceeding statement that identifies the container.

Specified by:

addBag in interface TripleFactory

Parameters:

subjectNode - the subject node of the triple.

bag - the bag to add.

Throws:

TripleFactoryException - If the resources were failed to be added.

addSequence

public void addSequence(SubjectNode subjectNode,
                        Sequence sequence)
                 throws TripleFactoryException

Description copied from interface: TripleFactory

Inserts a sequence using the given subject. The subject is also the object of a proceeding statement that identifies the container.

Specified by:

addSequence in interface TripleFactory

Parameters:

subjectNode - the subject node of the triple.

sequence - the sequence to add.

Throws:

TripleFactoryException - If the resources were failed to be added.

addCollection

public void addCollection(SubjectNode firstNode,
                          Collection collection)
                   throws TripleFactoryException

Description copied from interface: TripleFactory

Inserts a collection using the given subject. The subject is also the object of a proceeding statement that identifies the collection.

Specified by:

addCollection in interface TripleFactory

Parameters:

firstNode - the subject node of the triple.

collection - the collection to add.

Throws:

TripleFactoryException - If the resources were failed to be added.