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From "Craig Russell (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JDO-446) Add subqueries APIs
Date Wed, 31 Oct 2007 19:32:51 GMT

    [ https://issues.apache.org/jira/browse/JDO-446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12539163
] 

Craig Russell commented on JDO-446:
-----------------------------------

Two questions. 

1. The javadoc for param parameter[s] say
+     * @param parameters the actual values of the subquery parameters

But it isn't the actual values, it's the name of the expression in the outer query to bind
the parameter. The description is ok, but the @param should probably say 
* @param parameter the expression from the outer query to bind the parameter in the subquery

2. Should we consider one more method, with two arguments, that has the candidate collection
be the extent of the candidate class of the subquery? This would avoid the need for passing
null as the candidateCollectionExpression. Might be too much of a corner case.


> Add subqueries APIs
> -------------------
>
>                 Key: JDO-446
>                 URL: https://issues.apache.org/jira/browse/JDO-446
>             Project: JDO
>          Issue Type: New Feature
>          Components: api2, api2-legacy
>    Affects Versions: JDO 2 final
>            Reporter: Michelle Caisse
>            Assignee: Michael Bouschen
>             Fix For: JDO 2 maintenance release 1
>
>         Attachments: subquery-api.patch
>
>
> In 14, add subqueries to permit e.g. select from Employee where this.salary > (select
avg(salary) from Employee)

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