The document ( How to Fine-Tune the Execution of SADL-Based Gateway Services - Using the Query Options API, SAP NetWeaver 7.4 SP10 and higher Document Version: 7.4 SP10 V1 – 2015-03-09) states, that if one generates SADL based Odata services from a CDS View via SEGW,
the underlying and automatically generated model class (MPC) will implement the interface 'if_sadl_gw_query_options'.
Unfortunately this does not happen in our system (7.5 SP1) at all. The interface is missing in the generated MPC class.
Which steps have to be taken to enable that feature, or if that functionality is not available anymore under 7.5, what is best practice to customize query options in SADL based OData services?