[OASIS Issue Tracker] (ODATA-978) New annotation for availability/advertisement of bound actions/functions

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

    [ https://issues.oasis-open.org/browse/ODATA-978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=63474#comment-63474 ] 

Michael Pizzo commented on ODATA-978:
-------------------------------------

I like the simplicity of the default assumption that, if an operation is defined in metadata as bound to a type, it can be called on that type (it might return an error, but it's valid to call it).

The question then becomes, if I have an operation that *isn't* always supported, how is it described?  We know how it's advertised in payloads, but that payload needs to point back to metadata to describe parameters, return types, etc.

> New annotation for availability/advertisement of bound actions/functions
> ------------------------------------------------------------------------
>
>                 Key: ODATA-978
>                 URL: https://issues.oasis-open.org/browse/ODATA-978
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Bug
>          Components: Vocabularies
>    Affects Versions: V4.0_ERRATA03
>         Environment: Annotations, Proposed
>            Reporter: Ralf Handl
>             Fix For: V4.01_WD01
>
>
> Actions and functions that are not available on all instances can be advertised in responses, see http://docs.oasis-open.org/odata/odata/v4.0/errata03/os/complete/part1-protocol/odata-v4.0-errata03-os-part1-protocol-complete.html#_Toc453752309.
> What's missing is an indicator in $metadata which actions/functions will fall into this category.



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