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Subject: [OASIS Issue Tracker] Commented: (ODATA-346) Order of child elements of <edm:Collection> MUST be preserved
[ http://tools.oasis-open.org/issues/browse/ODATA-346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33418#action_33418 ]
Stefan Drees commented on ODATA-346:
------------------------------------
@Martin: Before we further broaden the scope of order preservation, one question: We do not talk about JSON objects, right? "An object is an unordered collection of zero or more name/value pairs, ..." [RFC4627] and the reality of parsing a JSON object into a map inside the host language will never - out of the box - realize our additional wish. In PHP the map keeps the insertion order, in Python this is not the case (and good IMO this is :-)
So if we talk about things mapped into arrays in JSON I presume we can well sharpen the RFC2119 knives around the relevant specifications, otherwise I'ld be reluctant to not cut ourselves.
> Order of child elements of <edm:Collection> MUST be preserved
> -------------------------------------------------------------
>
> Key: ODATA-346
> URL: http://tools.oasis-open.org/issues/browse/ODATA-346
> Project: OASIS Open Data Protocol (OData) TC
> Issue Type: Improvement
> Components: OData CSDL
> Affects Versions: V4.0_WD01, V4.0_CSD01
> Environment: [Proposed]
> Reporter: Ralf Handl
> Fix For: V4.0_CSD02
>
>
> Terms often require lists of primitive or complex values in which the order of entries is significant, e.g. when defining a leveled hierarchy for data aggregation.
> Making the order of child elements in a <Collection> element significant avoids the need of always using a complex type with a sequence property to express the order.
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