com.bigdata.rdf.sparql.ast.service

Class NullServiceFactory

java.lang.Object

com.bigdata.rdf.sparql.ast.eval.AbstractServiceFactoryBase

com.bigdata.rdf.sparql.ast.service.NullServiceFactory

All Implemented Interfaces:

ServiceFactory

public class NullServiceFactory
extends AbstractServiceFactoryBase

This service factory will always produce empty result. For use for SILENT SERVICE, etc.

Constructor Summary

Constructors

Constructor and Description
NullServiceFactory()

Method Summary

Methods

Modifier and Type	Method and Description
BigdataServiceCall	create(ServiceCallCreateParams params) Create a service invocation object.
IServiceOptions	getServiceOptions() Return options for the service end point.

Methods inherited from class com.bigdata.rdf.sparql.ast.eval.AbstractServiceFactoryBase

getDesiredBound, getRequiredBound

Methods inherited from class java.lang.Object

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

Constructor Detail

NullServiceFactory

public NullServiceFactory()

Method Detail

create

public BigdataServiceCall create(ServiceCallCreateParams params)

Description copied from interface: ServiceFactory

Create a service invocation object.

Parameters:

params - The pararameters, which are encapsulated by this interface.

Returns:

The object which can be used to evaluate the SERVICE clause.

getServiceOptions

public IServiceOptions getServiceOptions()

Description copied from interface: ServiceFactory

Return options for the service end point. Depending on the implementation, these options MAY be configurable.