oracle.pg.rdbms

Class PGUtils

java.lang.Object

oracle.pg.rdbms.PGUtils

public class PGUtils
extends java.lang.Object

A helpful utility to create property graph views (vertex and edge views) from an RDF model stored in an Oracle Database

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PGUtils.RDFPredicate This class defines how to map RDF predicates to property graph attributes/keys

Constructor Summary

Constructors

Constructor and Description
PGUtils()

Method Summary

Modifier and Type	Method and Description
static void	createPropertyGraphViewOnRDF(java.sql.Connection conn, java.lang.String pgGraphName, java.lang.String rdfModelName, boolean virtualModel, PGUtils.RDFPredicate[] predListForVertexAttrs, PGUtils.RDFPredicate[] predListForEdges) This method creates the property graph views (vertex and edge views) for the given RDF model.

Methods inherited from class java.lang.Object

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

Constructor Detail

PGUtils

public PGUtils()

Method Detail

createPropertyGraphViewOnRDF

public static void createPropertyGraphViewOnRDF(java.sql.Connection conn,
                                                java.lang.String pgGraphName,
                                                java.lang.String rdfModelName,
                                                boolean virtualModel,
                                                PGUtils.RDFPredicate[] predListForVertexAttrs,
                                                PGUtils.RDFPredicate[] predListForEdges)

This method creates the property graph views (vertex and edge views) for the given RDF model.

Parameters:

conn - an connection instance to Oracle database

pgGraphName - the name of the property graph to be created

rdfModelName - the name of the RDF model

virtualModel - a flag represents if the RDF model is virtual model or not

predListForVertexAttrs - an array of RDFPredicate objects specifying how to create vertex view using these predicates; each RDFPredicate includes an URL of the predicate in RDF model to be treated as a vertex key in the property graph, and the key name to be used.

predListForEdges - an array of RDFPredicate specifying how to create edge view using these predicates; each RDFPredicate includes an URL of the predicate in RDF model to be treated as an edge, the edge label to be used, and the weight of the edge (optional)