org.dice_research.ldcbench.rdf

Class SimpleTripleCreator

java.lang.Object

org.dice_research.ldcbench.rdf.SimpleTripleCreator

All Implemented Interfaces:

TripleCreator

Direct Known Subclasses:

SimpleCachingTripleCreator

public class SimpleTripleCreator
extends Object
implements TripleCreator

A simple TripleCreator implementation relying on a base graph Id and a list of URI templates of the existing graphs. Node that it makes this class being bound to a single graph.

Author:

Michael Röder (michael.roeder@uni-paderborn.de)

Field Summary

Fields

Modifier and Type	Field and Description
protected String[]	accessUriTemplates
protected int	baseGraphId
protected String[]	resourceUriTemplates

Constructor Summary

Constructors

Constructor and Description
SimpleTripleCreator(int baseGraphId, String[] resourceUriTemplates, String[] accessUriTemplates) Constructor.

Method Summary

Modifier and Type	Method and Description
org.apache.jena.graph.Node	createNode(int nodeId, int externalId, int extGraphId, boolean isProperty) Creates a Node instance based on the given information.
org.apache.jena.graph.Triple	createTriple(int sourceId, int propertyId, int targetId, int targetExtId, int targetExtGraphId)

Methods inherited from class java.lang.Object

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

Field Detail

baseGraphId

protected int baseGraphId

resourceUriTemplates

protected String[] resourceUriTemplates

accessUriTemplates

protected String[] accessUriTemplates

Constructor Detail

SimpleTripleCreator

public SimpleTripleCreator(int baseGraphId,
                           String[] resourceUriTemplates,
                           String[] accessUriTemplates)

Constructor.

Parameters:

baseGraphId - the graph Id of nodes that are not external nodes of the graph for which this triple creator is used.

uriTemplates - a mapping from graph Ids to domain names.

Method Detail

createTriple

public org.apache.jena.graph.Triple createTriple(int sourceId,
                                                 int propertyId,
                                                 int targetId,
                                                 int targetExtId,
                                                 int targetExtGraphId)

Specified by:

createTriple in interface TripleCreator

createNode

public org.apache.jena.graph.Node createNode(int nodeId,
                                             int externalId,
                                             int extGraphId,
                                             boolean isProperty)

Creates a Node instance based on the given information.

Parameters:

nodeId - the internal Id of the node

externalId - the external Id of the node if it belongs to a different graph or -1 if it is an internal node

extGraphId - the Id of the graph to which this node belongs to or -1 if it is an internal node

isProperty - a flag indicating whether the node is a property

Returns:

the created Node instance