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From "Michael Bouschen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JDO-580) Add TCK query test using methods in the query result
Date Thu, 07 Jul 2011 20:12:16 GMT

    [ https://issues.apache.org/jira/browse/JDO-580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13061556#comment-13061556
] 

Michael Bouschen commented on JDO-580:
--------------------------------------

Spec update proposal:

I propose to add the following to the list of result expression on page 176 of the JDO 3.0
spec.. It should be added between <field expression> and <parameter>.

* <method expression>: the value of an expression calling any of the methods allowed
in queries applied to fields is returned

> Add TCK query test using methods in the query result
> ----------------------------------------------------
>
>                 Key: JDO-580
>                 URL: https://issues.apache.org/jira/browse/JDO-580
>             Project: JDO
>          Issue Type: Test
>          Components: specification, tck, tck2-legacy
>    Affects Versions: JDO 2 maintenance release 1
>            Reporter: Michael Bouschen
>            Assignee: Craig L Russell
>             Fix For: JDO 3 maintenance release 1
>
>         Attachments: JDO-580.conf, JDO-580.patch, derby-app-JDO-580-junit.txt
>
>
> There are currently no TCK tests for using size() and max() or other aggregates in queries.
For example, find the Node or Nodes with the maximum number of children: SELECT FROM Node
WHERE this.children.size() == (SELECT MAX(n.children.size()) FROM Node n).

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