Package org.aksw.jenax.dataaccess.sparql.factory.dataengine

Class RdfDataEngineFromDataset

java.lang.Object

org.aksw.jenax.dataaccess.sparql.factory.dataengine.RdfDataEngineFromDataset

All Implemented Interfaces:

AutoCloseable, HasServiceControl, RDFEngine, HasRDFLinkSource

public class RdfDataEngineFromDataset
extends Object
implements RDFEngine

An RdfDataSource wrapper for a dataset. The connection supplier is a lambda in order to allow for context mutations and query transformations.

Author:

raven

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	closeDataset
protected RDFLinkSource	linkSource

Constructor Summary

Constructors

Constructor	Description
RdfDataEngineFromDataset(org.apache.jena.sparql.core.DatasetGraph datasetGraph, boolean closeDataset)

Method Summary

Modifier and Type	Method	Description
void	close()
static RdfDataEngineFromDataset	create(org.apache.jena.sparql.core.DatasetGraph dataset)	Create an engine whose close method closes the given dataset.
static RdfDataEngineFromDataset	create(org.apache.jena.sparql.core.DatasetGraph datasetGraph, boolean closeDataset)
RDFLinkSource	getLinkSource()
Optional<ServiceControl>	getServiceControl()	An engine may optionally expose a way to start and stop the underlying service.

Methods inherited from class java.lang.Object

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

Field Details

linkSource

protected RDFLinkSource linkSource

closeDataset

protected boolean closeDataset

Constructor Details

RdfDataEngineFromDataset

public RdfDataEngineFromDataset(org.apache.jena.sparql.core.DatasetGraph datasetGraph,
 boolean closeDataset)

Method Details

getLinkSource

public RDFLinkSource getLinkSource()

Specified by:

getLinkSource in interface HasRDFLinkSource

getServiceControl

public Optional<ServiceControl> getServiceControl()

Description copied from interface: RDFEngine

An engine may optionally expose a way to start and stop the underlying service. Note that only a call to AutoCloseable.close() must guarantee to stop the service and free any resources. Only calling ServiceControl.stop() is generally NOT sufficient.

Specified by:

getServiceControl in interface HasServiceControl

Specified by:

getServiceControl in interface RDFEngine

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

create

public static RdfDataEngineFromDataset create(org.apache.jena.sparql.core.DatasetGraph datasetGraph,
 boolean closeDataset)

create

public static RdfDataEngineFromDataset create(org.apache.jena.sparql.core.DatasetGraph dataset)

Create an engine whose close method closes the given dataset.