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Ralf Handl edited comment on ODATA-1107 at 8/24/17 10:21 AM:
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In which cases would this be useful? In order to get the instance annotation, the instance needs to have been read already.
Would this be Core.Implements, a stronger version of Core.MayImplement, that can be used in instance annotations as well as statically in $metadata?
was (Author: handl):
In which cases would this be useful?
In order to get the instance annotation, the instance needs to have been read already.
> Introduce instance annotation to specify which types an instance "implements"
> -----------------------------------------------------------------------------
>
> Key: ODATA-1107
> URL: https://issues.oasis-open.org/browse/ODATA-1107
> Project: OASIS Open Data Protocol (OData) TC
> Issue Type: Bug
> Components: URL Conventions, Vocabularies
> Affects Versions: V4.01_CSD02
> Reporter: Michael Pizzo
> Fix For: V4.01_CS01
>
>
> With the new "MayImplement" annotation, and semantics around using a cast segment to cast to an type outside of the hierarchy we introduce a powerful new way of supporting "dynamic interfaces" which may be supported by some instances but not others.
> What we don't have is a way to specify, for a particular instance, which types (outside of the hierarchy) it supports.
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