NEW ISSUE: Define an API to call References whose SEI is not know at Design time

["Savchenko, Vladimir" <vladimir.savchenko@sap.com>]

Title: NEW ISSUE: Define an API to call References whose SEI is not know at Design time

TARGET: Java Common Annotations and APIs, WD 03

DESCRIPTION:
Currently the spec is missing an API to do dynamic calls. E.g. assuming that there is a framework that based on some metadata dynamically creates SDO DataObjects, knows which is the SCA reference to be invoked, knows the operation name. Then an API to do a dynamic call to this reference is very convenient.
The SDO specification defines the so called Data Access Service entity, which is an abstract entity used to call services. As far as I am aware – the DAS API is not specified too formally.
Maybe the focus of SCA-J is not to have such APIs at the end. And leave it as a vendor specific solution, but it would be interesting to discuss what t do in such case.

This issue is not related to JAVA-1 - which is about calling SCA References or Services from outside SCA Managed code.
This is rather to call a refernce from inisde a SCA managed component, but not knowing or caring or having, the actual interface.

PROPOSAL:
1. Come to a conclusion whether this is part of the spec, or should be vendor specific
2. If it should be part of the spec - analyze different approaches how it can be done
3. If it should be vendor specific - at least provide APIs how to do it.