[ http://tools.oasis-open.org/issues/browse/CMIS-655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=19244#action_19244 ]
Florent Guillaume commented on CMIS-655:
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I think this should be repository-specific.
For instance in my repository it's quite useful to be able to do a getChildren and order by a non-system property like "position" or a custom date. In other words the third example in your proposal is precisely one I'd like to support.
One could add a repository capability to expose the allowed semantics for the getChildren filter.
> Folder Children (restrict acceptable values for OrderBy)
> --------------------------------------------------------
>
> Key: CMIS-655
> URL: http://tools.oasis-open.org/issues/browse/CMIS-655
> Project: OASIS Content Management Interoperability Services (CMIS) TC
> Issue Type: Improvement
> Components: Domain Model
> Affects Versions: Committee Draft 06
> Environment: n/a
> Reporter: Jay Brown
> Assignee: Ethan Gur-esh
> Priority: Minor
>
> Since folder getChildren is basically a specialized query against two different tables, supporting all orderBy values for all possible orderable properties becomes prohibitively difficult for some repositories.
> In some repositories, the underlying query against all documents (and sub classes of document) may not permit sorting by a field that only may be present on a subclass of document. But the scope of this call implies all cmis:document subclasses and all cmis:folder subclasses.
> An example of a case that may be difficult to correctly service is the following:
> A subclass of cmis:document named invoicedoc exists that has a an orderable property value of 'foo'.
> A folder getchildren is then reqested for a folder with an orderBy parm set to "foo".
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