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Subject: [OASIS Issue Tracker] Updated: (ODATA-158) OData ATOM format should require <category> element

     [ http://tools.oasis-open.org/issues/browse/ODATA-158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralf Handl updated ODATA-158:

        Fix Version/s: WD01
    Affects Version/s: WD01

> OData ATOM format should require <category> element
> ---------------------------------------------------
>                 Key: ODATA-158
>                 URL: http://tools.oasis-open.org/issues/browse/ODATA-158
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Bug
>          Components: OData ATOM Format v1.0
>    Affects Versions: WD01
>         Environment: [Proposed]
>            Reporter: Michael Pizzo
>            Assignee: Michael Pizzo
>             Fix For: WD01
> The <category> element is used in atom to identify the type of the individual entity. Many clients rely on this element in order to understand the type of the individual entry.
> The atom specification currently says this element is optional if the type of the entity can be determined from the feed (in particular, if there is no inheritance hierarchy):
> "An OData entry MAY contain a single atom:category element with a scheme attribute equal to "http://schemas.microsoft.com/ado/2007/08/dataservices/scheme"; to identify the entity type of the entry. This element MUST be present if the entry represents an entity whose type is part of a type hierarchy."
> This optionality adds complexity to the client logic, as clients don't have a single place to look to determine the type; they have to understand more context in order to determine the type in the absence of the element.
> The savings of omitting this element is negligible for the ATOM format.

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