Re: AW: [OJB-developers] Let's fix the testsuite!

[Oleg N. <on...@uk...>]

Hi Thomas,

On Tuesday 28 May 2002 10:14, Mahler Thomas wrote:
> > But maybe there are some problems with this?
>
> I don't see any. in storeMtoNImplementor() we should check if an entry
> already exists. If so do nothing, else insert a new entry.
No you mean repetitive database lookups? 

> > BTW I wonder if the current algorithm works when some link
> > between Persons
> > and Projects is removed.
>
> Currently there is no support to remove m:n entries automatically. They
> have to be deleted manually.
I see. To achieve this we should either remember the original state of the 
m:n relation or to read the set of all indirection instances from the 
database in storeMtoNImplementor(), then compare them against the current set 
of indirection instances in memory, then insert/delete the two differences of 
two sets. Then there is no need in multiple database lookups.

> I'll have a look at 4. and 5. then!
Okay! :)

Thanks,
 Oleg