public interface MockIVReturningServiceCall extends ServiceCall<IBindingSet>
Service invocation interface for an external (non-bigdata) service. Data
interchange with the external service uses the internal
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.
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