RE: [ojb-users] proxied collections and non-decomposed m:n relati onships

[Ebersole, S. <ste...@vi...>]

For the List stuff, I agree it will be easy to do seeing as how most of the
work has already been done in the CollectionProxy class.  What was your
thinking on how to decide which to return?  Should it just always return the
ListProxy?  I will work on this this weekend.

As for the JCA and JTA stuff, I could help out with some sample code.
However, I do not have the code including any JTA or JCA components.  By
what tag do I need to do a check-out to get that code (is it HEAD, or 4_0)?
But seeing as how I haven't even seen the code for it, I am not sure I would
be the right one to write up any sort of documentation.  

To what extent does the JCA code go?  I mean, is it just the JTA piece for
connecting to transaction managers or is it a "full-fledged" attempt to
allow OJB to be plugged into containers as the persistence engine?



********************************************
Steve Ebersole
IT Integration Engineer
Vignette Corporation 
512.741.4195

Visit http://www.vignette.com

********************************************


-----Original Message-----
From: Thomas Mahler [mailto:tho...@ho...]
Sent: Friday, May 31, 2002 7:21 AM
To: Ebersole, Steven
Cc: obj...@li...
Subject: Re: [ojb-users] proxied collections and non-decomposed m:n
relationships


Hi Steven,

Ebersole, Steven wrote:

> Is it possible to utilize a proxy collection on "non-decomposed m:n
> mappings" (where an indirection_table is explicitly defined in the
mapping)?
> 
> I keep getting "ORA-00904: invalid column name" errors when attempting
this
> even though it works when the collection is non-proxied?
>


Mhh, I don't think that this is implemented yet.
We should as Jakob Braeuchli, who implemented this feature...

 
> 
> 
> As an aside, I would like to be able to use java.util.List for the
> collections in the mapped objects whether or not they are proxied.  I just
> wondered whether anyone has started work on a proxy handling the List
> interface.  If not, I will do it, and was just wondering if this would be
> something of general interest.


Sure, this is a must, as The List interface is supported everywhere 
else. implementing this won't be too difficult.


> 
> Also, I know some work has been started on JTA integration.  This is
> something in which I would be extremely interested.  If any help is needed
> on this effort, I would be glad to volunteer any time I can.  However, I
am
> not sure who is leading this effort.  Just let me know.
> 


AFAIK JTA and JCA stuff are completed. But it would be good to have more 
Examplecode and documentation on these feature

Thanks for your offer to help!

cheers,

Thomas


> 
> 
> 
> ********************************************
> Steve Ebersole
> IT Integration Engineer
> Vignette Corporation 
> 512.741.4195
> 
> Visit http://www.vignette.com
> 
> ********************************************
> 
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