[OASIS Issue Tracker] (ODATA-1107) Introduce instance annotation to specify which types an instance "implements"

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

    [ https://issues.oasis-open.org/browse/ODATA-1107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=67181#comment-67181 ] 

Ralf Handl commented on ODATA-1107:
-----------------------------------

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: 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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