com.bigdata.rdf.sparql.ast.eval

Class SliceServiceFactory

java.lang.Object

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

com.bigdata.rdf.sparql.ast.eval.AbstractServiceFactory

com.bigdata.rdf.sparql.ast.eval.SliceServiceFactory

All Implemented Interfaces:

ServiceFactory

public class SliceServiceFactory
extends AbstractServiceFactory

A factory for a statement pattern slicing service. It accepts a group with a single triple pattern in it:

 service bd:slice {
   ?s rdf:type ex:Foo .
   
   # required service params for the sample
     # either offset+limit 
     bd:serviceParam bd:slice.offset 0 .
     bd:serviceParam bd:slice.limit 2000 .
     # or range
     bd:serviceParam bd:slice.range ?range 
 }
 

The service params are required and set the slicing parameters. You can either request a slice or request a range count depending on the params. The range count is useful when dealing with a "rangeSafe" predicate with a range filter.

See Also:

RangeBOp

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	SliceServiceFactory.SliceParams The service params for this service.

Field Summary

Fields

Modifier and Type	Field and Description
static org.openrdf.model.URI	SERVICE_KEY The URI service key.

Constructor Summary

Constructors

Constructor and Description
SliceServiceFactory()

Method Summary

Methods

Modifier and Type	Method and Description
BigdataServiceCall	create(ServiceCallCreateParams params, ServiceParams serviceParams) Implemented by subclasses - verify the group and create the service call.
BigdataNativeServiceOptions	getServiceOptions() Return options for the service end point.

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

create

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

Field Detail

SERVICE_KEY

public static final org.openrdf.model.URI SERVICE_KEY

The URI service key.

Constructor Detail

SliceServiceFactory

public SliceServiceFactory()

Method Detail

getServiceOptions

public BigdataNativeServiceOptions getServiceOptions()

Description copied from interface: ServiceFactory

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

create

public BigdataServiceCall create(ServiceCallCreateParams params,
                        ServiceParams serviceParams)

Description copied from class: AbstractServiceFactory

Implemented by subclasses - verify the group and create the service call.

Specified by:

create in class AbstractServiceFactory