org.aksw.jena_sparql_api.mapper.context

Class RdfEmitterContextImpl

java.lang.Object

org.aksw.jena_sparql_api.mapper.context.RdfEmitterContextImpl

All Implemented Interfaces:

RdfEmitterContext

public class RdfEmitterContextImpl
extends Object
implements RdfEmitterContext

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<Object,org.apache.jena.graph.Node>	entityToNode
protected org.aksw.jena_sparql_api.util.frontier.Frontier<Object>	frontier
static int	i
protected Map<org.apache.jena.graph.Node,ResolutionRequest>	nodeToResolutionRequest
protected RdfPersistenceContext	persistenceContext

Constructor Summary

Constructors

Constructor and Description
RdfEmitterContextImpl(RdfPersistenceContext persistenceContext)

Method Summary

Modifier and Type	Method and Description
org.aksw.jena_sparql_api.util.frontier.Frontier<Object>	getFrontier() Request a placeholder node which corresponds to the (inverse) property of the given subject.
Map<org.apache.jena.graph.Node,ResolutionRequest>	getNodeToResolutionRequest()
boolean	isEmitted(Object entity)
org.apache.jena.graph.Node	requestResolution(Object entity) Resolve an entity to a node using default strategies
org.apache.jena.graph.Node	requestResolution(Object parentEntity, String propertyName)
void	setEmitted(Object entity, boolean status)

Methods inherited from class java.lang.Object

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

Field Detail

frontier

protected org.aksw.jena_sparql_api.util.frontier.Frontier<Object> frontier

persistenceContext

protected RdfPersistenceContext persistenceContext

nodeToResolutionRequest

protected Map<org.apache.jena.graph.Node,ResolutionRequest> nodeToResolutionRequest

entityToNode

protected Map<Object,org.apache.jena.graph.Node> entityToNode

i

public static int i

Constructor Detail

RdfEmitterContextImpl

public RdfEmitterContextImpl(RdfPersistenceContext persistenceContext)

Method Detail

getNodeToResolutionRequest

public Map<org.apache.jena.graph.Node,ResolutionRequest> getNodeToResolutionRequest()

isEmitted

public boolean isEmitted(Object entity)

Specified by:

isEmitted in interface RdfEmitterContext

Returns:

setEmitted

public void setEmitted(Object entity,
                       boolean status)

Specified by:

setEmitted in interface RdfEmitterContext

requestResolution

public org.apache.jena.graph.Node requestResolution(Object parentEntity,
                                                    String propertyName)

Parameters:

entity -

Returns:

requestResolution

public org.apache.jena.graph.Node requestResolution(Object entity)

Description copied from interface: RdfEmitterContext

Resolve an entity to a node using default strategies

Specified by:

requestResolution in interface RdfEmitterContext

Returns:

getFrontier

public org.aksw.jena_sparql_api.util.frontier.Frontier<Object> getFrontier()

Request a placeholder node which corresponds to the (inverse) property of the given subject. Making the strategy for what to do with an existing node configurable is work in progress. Furthermore, the given java entity triple should be written using the given rdfType with the obtained placeholder node as the starting node. This means, that during writing, further requestResultion requests can be occurr. Note, that based on the triples written to the sink, existing iri values may be looked up and possibly reused. Node subject, Directed property,

Specified by:

getFrontier in interface RdfEmitterContext