[OASIS Issue Tracker] (ODATA-879) Support Arrays of Arrays

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

     [ https://issues.oasis-open.org/browse/ODATA-879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralf Handl updated ODATA-879:
-----------------------------

    Proposal: 
Don't add a formal notion of arrays of arrays to the data model (it breaks too many rules).

Instead, use "Edm.Untyped" (see ODATA-881) or "Collection(Edm.Untyped)" (see ODATA-973) as a way to allow payloads that contain such structure.

  was:
Don't add a formal notion of arrays of arrays to the data model (it breaks too many rules).

Instead, use "Edm.Untyped" (see ODATA-881) or "Collection(Edm.Untyped)" (see ) as a way to allow payloads that contain such structure.


> Support Arrays of Arrays
> ------------------------
>
>                 Key: ODATA-879
>                 URL: https://issues.oasis-open.org/browse/ODATA-879
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Bug
>          Components: OData CSDL, OData JSON Format
>    Affects Versions: V4.0_ERRATA02
>            Reporter: Michael Pizzo
>            Assignee: Michael Pizzo
>             Fix For: V4.01_WD01
>
>
> There are scenarios where it's convenient to represent something as an array of arrays. In JSON this would look as:
> [["foo1","bar1"],["foo2","bar2"]]
> or
> [[{"foo":"foo1"},{"bar":"bar1"}],[{"foo":"foo2"},{"bar":"bar2"}]]
> Currently services must represent these as arrays of complex types that have array properties. In JSON, the result looks like:
> [{"value":["foo1","bar1"]},{"value":["foo2","bar2"]}]
> or
> [{"value":[{"foo":"foo1"},{"bar":"bar1"}]},{"value":[{"foo":"foo2"},{"bar":"bar2"}]}]
> If we are trying to make JSON representation as close as possible to a custom representation we would need to support the former syntax (without the "value" objects).
> One problem with arrays of arrays in JSON is that we don't have a way to annotate the (array) items within the array. For example, we couldn't add count, nextLink, etc. for the inner arrays..



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