Re: Help Needed !! Very urgent !!

[Thomas Mahler]

Hi Dhamu,

Dhamodharan P wrote:
> Dear Thomas,
>
> I am working in OJB,ODMG api with ORACLE. Need a favour from you, In
> my project lot of oracle sqlqueries like join, ,subqueries,
> corelated queries... and oracle functions like between,date...,.

I this case I'd recommend to use the PersistenceBroker Query mechanism.
It contains QUeryBySql, can use sql-functions, etc.
The FAQ contains a section on using PB queries with ODMG transactions.

> Since OJB is a DAO pattern .

The ODMG API is not implemeting DAO pattern! In fact it is really a complementary approach. There have been some posts to this list yesterday, demostrating that you have to do some additional tricks to use ODMG in a DAO pattern style.

> How can i implement? Can you please guide
> me.If you have any reference or site,just mail me.Its very urgent for
> me.
>

Did you have a look at the "links.html" page in the documentation? It contains soem useful links to O/R pattern related site.
Martin Fowlers Latest book (patterns for enterprise application or similar) contains a lot of good ideas how to use an O/R mapping withing large scale apps.

cheers,
Thomas

>
> Thanks in Advance Dhamu
>
>
>
>
>
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