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Date: Tue, 6 Mar 2012 09:26:57 +0000 (UTC)
From: "Knut Anders Hatlen (Closed) (JIRA)" <jira@apache.org>
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Subject: [jira] [Closed] (DERBY-5635) Provide implementation for
 getMetaData() in VTITemplate
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     [ https://issues.apache.org/jira/browse/DERBY-5635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Knut Anders Hatlen closed DERBY-5635.
-------------------------------------

          Resolution: Fixed
       Fix Version/s: 10.9.0.0
    Issue & fix info:   (was: Patch Available)

Thanks, Rick. Committed revision 1297396.
                
> Provide implementation for getMetaData() in VTITemplate
> -------------------------------------------------------
>
>                 Key: DERBY-5635
>                 URL: https://issues.apache.org/jira/browse/DERBY-5635
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.9.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>            Priority: Minor
>             Fix For: 10.9.0.0
>
>         Attachments: d5635.diff
>
>
> VTITemplate defines getMetaData() as an abstract method. That method doesn't appear to be needed for user-defined table functions, so it would be good to provide a default implementation (could just throw an exception) so that less boilerplate is needed when writing table functions. The method does however get used by system VTIs, which is probably why it was made abstract in the first place. The system VTIs should still override getMetaData().

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