org.dice_research.ldcbench.rdf

Class SimpleCachingTripleCreator

java.lang.Object

org.dice_research.ldcbench.rdf.SimpleTripleCreator

org.dice_research.ldcbench.rdf.SimpleCachingTripleCreator

All Implemented Interfaces:

TripleCreator

public class SimpleCachingTripleCreator
extends SimpleTripleCreator

A simple extension of the SimpleTripleCreator which uses internal maps for caching created nodes. Note that the used maps have no size restriction.

Author:

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

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<Integer,org.apache.jena.graph.Node>	propertyCache
protected Map<Integer,org.apache.jena.graph.Node>	resourceCache

Fields inherited from class org.dice_research.ldcbench.rdf.SimpleTripleCreator

accessUriTemplates, baseGraphId, resourceUriTemplates

Constructor Summary

Constructors

Constructor and Description
SimpleCachingTripleCreator(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.

Methods inherited from class org.dice_research.ldcbench.rdf.SimpleTripleCreator

createTriple

Methods inherited from class java.lang.Object

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

Field Detail

resourceCache

protected Map<Integer,org.apache.jena.graph.Node> resourceCache

propertyCache

protected Map<Integer,org.apache.jena.graph.Node> propertyCache

Constructor Detail

SimpleCachingTripleCreator

public SimpleCachingTripleCreator(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

createNode

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

Description copied from class: SimpleTripleCreator

Creates a Node instance based on the given information.

Overrides:

createNode in class SimpleTripleCreator

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