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From "Michael Dick (JIRA)" <j...@apache.org>
Subject [jira] Updated: (OPENJPA-101) enhance JPQL Constructor Expressions implementation
Date Tue, 29 Jul 2008 16:38:31 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Dick updated OPENJPA-101:
---------------------------------

    Fix Version/s:     (was: 1.2.0)
                   1.3.0

Moving to next release

> enhance JPQL Constructor Expressions implementation
> ---------------------------------------------------
>
>                 Key: OPENJPA-101
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-101
>             Project: OpenJPA
>          Issue Type: Improvement
>          Components: query
>            Reporter: wanyna
>             Fix For: 1.3.0
>
>
> There are two tables A and B, I need to execute sql like
> "insert into A select ... from B".
> I use JPQL Constructor Expressions,
> select new A(...) from B, got A list then persist.
> But some fields of A depends on program context, not direct from B, so SELECT NEW clause
should look like these :
> select new A(B.column1, 'xxx') from B, or
> select new A(null, B.column2) from B, or
> select new A(variable, B.column2) from B.
> Unfortunately, OpenJPA doesn't support this.
> I have to get the result object[] list and constuct A in my code now. 
> If JPQL Constructor Expressions become more powerful, my code  will be more simple then.


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