com.bigdata.rdf.sparql.ast.eval

Class CustomServiceFactoryBase

java.lang.Object

com.bigdata.rdf.sparql.ast.eval.CustomServiceFactoryBase

All Implemented Interfaces:

CustomServiceFactory, ServiceFactory

Direct Known Subclasses:

DescribeServiceFactory, GASService, HistoryServiceFactory

public abstract class CustomServiceFactoryBase
extends Object
implements CustomServiceFactory

Base class for abstract services, providing base implementation for getRequiredBound and getDesiredBound methods (which can be overridden by subclasses).

Version:

$Id$

Author:

Michael Schmidt

Constructor Summary

Constructors

Constructor and Description
CustomServiceFactoryBase()

Method Summary

Methods

Modifier and Type	Method and Description
Set<IVariable<?>>	getDesiredBound(ServiceNode serviceNode) Default implementation for method ServiceFactory.getDesiredBound(ServiceNode), allowing for simple services where all variables used inside the service are considered "outgoing".
Set<IVariable<?>>	getRequiredBound(ServiceNode serviceNode) Default implementation for method ServiceFactory.getRequiredBound(ServiceNode), allowing for simple services where all variables used inside the service are considered "outgoing".

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.bigdata.rdf.sparql.ast.service.CustomServiceFactory

startConnection

Methods inherited from interface com.bigdata.rdf.sparql.ast.service.ServiceFactory

create, getServiceOptions

Constructor Detail

CustomServiceFactoryBase

public CustomServiceFactoryBase()

Method Detail

getRequiredBound

public Set<IVariable<?>> getRequiredBound(ServiceNode serviceNode)

Default implementation for method ServiceFactory.getRequiredBound(ServiceNode), allowing for simple services where all variables used inside the service are considered "outgoing". As a consequence, when building upon this default implementation, the Service will be executed *before* the variables used inside the Service body are bound.

Specified by:

getRequiredBound in interface ServiceFactory

getDesiredBound

public Set<IVariable<?>> getDesiredBound(ServiceNode serviceNode)

Default implementation for method ServiceFactory.getDesiredBound(ServiceNode), allowing for simple services where all variables used inside the service are considered "outgoing". As a consequence, when building upon this default implementation, the Service will be executed *before* the variables used inside the Service body are bound.

Specified by:

getDesiredBound in interface ServiceFactory