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From Brian McCallister <mccallis...@forthillcompany.com>
Subject Re: OJB query! please help !
Date Fri, 10 Sep 2004 13:13:44 GMT
In all honesty, I wouldn't recommend using OJB's JDO api yet. The 
existing JDO 1.0.1 implementation is quite weak, and is more 
proof-of-concept than anything. The reflective nature of OJB 
persistence just never really encouraged anyone to flesh out 1.0.1.

We are actively working on a JDO 2.0 right now (supports reflective 
persistence), with an (optimistic) timeline of around November for it 
being usable. This largely depends on where the spec goes as the last 
public showing of the spec was in June and rumour has it more changes 
to it are coming from feedback garnered then =)


On Sep 10, 2004, at 9:05 AM, GuptaTTG@gxs.com wrote:

> Hi
> I am currently evaluating different JDO products to use in my project.
> Right now I am in the process of evaluating OJB (JDO API) and and 
> trying to
> reverse engineer from the DB schema.
> We are building a search facility using a JDO solution we are 
> considering to
> use OJB for this purpose. We have a requirement to allow the search 
> users to
> search only a subset of attributes from a class. For example an entity
> consists of 10 attributes but if the users is interested only in two
> attributes then he should be able to specify only those two attributes 
> in
> the search. Some of JDO solutions support this feature by allowing 
> "Featch
> groups" in JDO queries. My question is does OJB - JDO support this 
> feature,
> or is there any other way to implement this using OJB - JDO.
> Thanks in Advance.
> Regards,
> Tarun

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