slib.graph.algo.accessor

Class GraphAccessor

java.lang.Object

slib.graph.algo.accessor.GraphAccessor

public class GraphAccessor
extends Object

Author:

Sébastien Harispe

Constructor Summary

Constructors

Constructor and Description
GraphAccessor()

Method Summary

Methods

Modifier and Type	Method and Description
static Set<org.openrdf.model.URI>	getClasses(G graph) Return a set of URI corresponding to the classes of the graph.
static Set<org.openrdf.model.URI>	getInstances(G graph) Return a set of URI corresponding to the instances of the graph, note that instance.
static Set<org.openrdf.model.URI>	getV_NoEdgeType(G g, Set<org.openrdf.model.URI> edgeTypes, Direction dir)
static Set<org.openrdf.model.URI>	getV_NoEdgeType(G g, org.openrdf.model.URI edgeType, Direction dir)

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphAccessor

public GraphAccessor()

Method Detail

getClasses

public static Set<org.openrdf.model.URI> getClasses(G graph)

Return a set of URI corresponding to the classes of the graph. A vertex v of the graph is considered as a class if the graph contains a statement of the form :

• v RFDS.SUBCLASSOF ?
• ? RDFS.SUBCLASSOF v
• ? RDF.TYPE v

Parameters:

graph - the graph

Returns:

a set of URI corresponding to the classes of the graph

getInstances

public static Set<org.openrdf.model.URI> getInstances(G graph)

Return a set of URI corresponding to the instances of the graph, note that instance. A vertex v of the graph is considered as an instance if the graph do not contains a statement of the form :

• v RFD.TYPE ? with ? not equals to RDFS.RESOURCE/CLASS/LITERAL/DATATYPE/PROPERTY/XMLLITERAL or OWL.CLASS
Those restrictions do not cover all cases e.g. RDF instance of RDFS.CONTAINER will be considered as instance...

Parameters:

graph - the graph

Returns:

a set of URI corresponding to the classes of the graph

getV_NoEdgeType

public static Set<org.openrdf.model.URI> getV_NoEdgeType(G g,
                                         org.openrdf.model.URI edgeType,
                                         Direction dir)

getV_NoEdgeType

public static Set<org.openrdf.model.URI> getV_NoEdgeType(G g,
                                         Set<org.openrdf.model.URI> edgeTypes,
                                         Direction dir)