org.jrdf.graph
Interface GraphElementFactory

All Superinterfaces:

GraphValueFactory

All Known Implementing Classes:

GraphElementFactoryImpl

public interface GraphElementFactory
extends GraphValueFactory

A Graph Element Factory is a class which creates the various components of a graph including: resources, literals and blank nodes. It is generally tied to a specific graph (in the case of blank nodes it must be).

Version:

$Revision: 2894 $

Author:

Andrew Newman

Method Summary

BlankNode	createBlankNode() Create a blank node that is associated with a specific graph.
Resource	createResource() Create a resource, wrapping a blank node that is associated with a specific graph.
Resource	createResource(BlankNode node) Wrap a blank node in a resource.
Resource	createResource(Node node)
Resource	createResource(URI uri) Create a URI reference wrapped in a Resource.
Resource	createResource(URI uri, boolean validate) Create a URI reference wrapped in a Resource without checking if the URI given is a valid RDF URI, currently if the URI is absolute.
Resource	createResource(URIReference node) Wrap a URIReference in a resource.

Methods inherited from interface org.jrdf.graph.GraphValueFactory

createLiteral, createLiteral, createLiteral, createLiteral, createURIReference, createURIReference

Method Detail

createResource

Resource createResource()
                        throws GraphElementFactoryException

Create a resource, wrapping a blank node that is associated with a specific graph.

Returns:

the newly created resource wrapping a blank node value.

Throws:

GraphElementFactoryException - if adding a blank node fails.

createResource

Resource createResource(BlankNode node)
                        throws GraphElementFactoryException

Wrap a blank node in a resource.

Parameters:

node - the node to wrap.

Returns:

a new resource.

Throws:

GraphElementFactoryException - if the blank node does not exist.

createResource

Resource createResource(URIReference node)
                        throws GraphElementFactoryException

Wrap a URIReference in a resource.

Parameters:

node - the node to wrap.

Returns:

a new resource.

Throws:

GraphElementFactoryException - if the URIReference does not exist.

createBlankNode

BlankNode createBlankNode()
                          throws GraphElementFactoryException

Create a blank node that is associated with a specific graph.

Returns:

the newly created blank node value.

Throws:

GraphElementFactoryException - if adding a blank node fails.

createResource

Resource createResource(URI uri)
                        throws GraphElementFactoryException

Create a URI reference wrapped in a Resource.

Parameters:

uri - The URI of the resource.

Returns:

the newly created resource wrapping a URI reference value.

Throws:

GraphElementFactoryException - If the resource failed to be created.

createResource

Resource createResource(URI uri,
                        boolean validate)
                        throws GraphElementFactoryException

Create a URI reference wrapped in a Resource without checking if the URI given is a valid RDF URI, currently if the URI is absolute.

Parameters:

uri - The URI of the resource.

validate - true if we disbale checking to see if the URI is valid.

Returns:

The newly created URI reference value.

Throws:

GraphElementFactoryException - If the resource failed to be created.

createResource

Resource createResource(Node node)
                        throws GraphElementFactoryException

Throws:

GraphElementFactoryException