com.bigdata.rdf.sparql.ast.service

Interface MockIVReturningServiceCall

All Superinterfaces:

ServiceCall<IBindingSet>

public interface MockIVReturningServiceCall
extends ServiceCall<IBindingSet>

Service invocation interface for an external (non-bigdata) service. Data interchange with the external service uses the internal IBindingSet abstraction and it is up to the implementing service to do any conversion of external entities. More precisely, the service must return internal values with mocked IVs, which will be automatically resolved against the database, turning them into IVs. This can be understood as the most generic kind of interface for interacting with external services.

In order to determine the set of mocked IVs, the service must specify the set of variables for which such mocked IVs are generated. This can be understood as the set of "outgoing" variables of the service, i.e. those variables that are bound by executing the service call. All variables occurring in the service that are not part of this set are considered incoming variables; they must be bound (if at all) prior to executing the service.

See Also:

ServiceRegistry, ServiceFactory

Method Summary

Methods

Modifier and Type	Method and Description
List<IVariable<IV>>	getMockVariables() Returns the set of variables that are internally bound.

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

call, getServiceOptions

Method Detail

getMockVariables

List<IVariable<IV>> getMockVariables()

Returns the set of variables that are internally bound. As this service is not operating on the internal data model, these are the variables that are pointing to mock IVs (which need to be resovled later on).

Returns: