edu.cornell.mannlib.vitro.webapp.rdfservice.impl

Class RDFServiceFactorySingle

java.lang.Object

edu.cornell.mannlib.vitro.webapp.rdfservice.impl.RDFServiceFactorySingle

All Implemented Interfaces:

RDFServiceFactory

public class RDFServiceFactorySingle
extends Object
implements RDFServiceFactory

An RDFServiceFactory that always returns the same RDFService object

Author:

bjl23

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	RDFServiceFactorySingle.UnclosableRDFService

Constructor Summary

Constructors

Constructor and Description
RDFServiceFactorySingle(RDFService rdfService)

Method Summary

Modifier and Type	Method and Description
RDFService	getRDFService()
RDFService	getShortTermRDFService() Returns an instance of RDFService that may not support being left idle for long periods of time.
void	registerJenaModelChangedListener(com.hp.hpl.jena.rdf.model.ModelChangedListener listener) Registers a Jena ModelChangedListener to listen to changes in any graph in the RDF store.
void	registerListener(ChangeListener listener) Registers a listener to listen to changes in any graph in the RDF store.
void	unregisterJenaModelChangedListener(com.hp.hpl.jena.rdf.model.ModelChangedListener listener) Unregisters a Jena ModelChangedListener from listening to changes in the RDF store.
void	unregisterListener(ChangeListener listener) Unregisters a listener from listening to changes in the RDF store.

Methods inherited from class java.lang.Object

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

Constructor Detail

RDFServiceFactorySingle

public RDFServiceFactorySingle(RDFService rdfService)

Method Detail

getRDFService

public RDFService getRDFService()

Specified by:

getRDFService in interface RDFServiceFactory

Returns:

RDFService - an RDFService instance

getShortTermRDFService

public RDFService getShortTermRDFService()

Description copied from interface: RDFServiceFactory

Returns an instance of RDFService that may not support being left idle for long periods of time. RDFService instances returned by this method should be immediately used and closed, not stored in (for example) session or context attributes. This method exists to enable performance improvements resulting from a lack of need to handle database connection or other service timeouts and reconnects. The results provided by RDFService instances returned by this method must be identical to those provided by instances returned by getRDFService().

Specified by:

getShortTermRDFService in interface RDFServiceFactory

Returns:

RDFService - an RDFService instance

registerListener

public void registerListener(ChangeListener listener)
                      throws RDFServiceException

Description copied from interface: RDFServiceFactory

Registers a listener to listen to changes in any graph in the RDF store. Any RDFService objects returned by this factory should notify this listener of changes.

Specified by:

registerListener in interface RDFServiceFactory

Parameters:

listener - - the change listener

Throws:

RDFServiceException

unregisterListener

public void unregisterListener(ChangeListener listener)
                        throws RDFServiceException

Description copied from interface: RDFServiceFactory

Unregisters a listener from listening to changes in the RDF store. Any RDFService objects returned by this factory should no longer notify this listener of changes.

Specified by:

unregisterListener in interface RDFServiceFactory

Parameters:

listener - - the change listener

Throws:

RDFServiceException

registerJenaModelChangedListener

public void registerJenaModelChangedListener(com.hp.hpl.jena.rdf.model.ModelChangedListener listener)
                                      throws RDFServiceException

Description copied from interface: RDFServiceFactory

Registers a Jena ModelChangedListener to listen to changes in any graph in the RDF store. Any RDFService objects returned by this factory should notify this listener of changes.

Specified by:

registerJenaModelChangedListener in interface RDFServiceFactory

Parameters:

listener - - the change listener

Throws:

RDFServiceException

unregisterJenaModelChangedListener

public void unregisterJenaModelChangedListener(com.hp.hpl.jena.rdf.model.ModelChangedListener listener)
                                        throws RDFServiceException

Description copied from interface: RDFServiceFactory

Unregisters a Jena ModelChangedListener from listening to changes in the RDF store. Any RDFService objects returned by this factory should no longer notify this listener of changes.

Specified by:

unregisterJenaModelChangedListener in interface RDFServiceFactory

Parameters:

listener - - the change listener

Throws:

RDFServiceException