Re: [Springframework-developer] RE: Dao implementation with ldap

[Olivier J. <oli...@pc...>]

katentim @hotmail.com wrote:

> There's also a question of handling errors without transactions in LDAP.
>
> Would the implementation be to throw something like 
> DataAccessException and just roll back other transactional resources?

I was thinking about this, indeed.
Should we try to simulate transactions by, for instance, storing the 
reverse delta of what we're actually performing so that a rollback could 
go back ?
It still isn't a good solution as it doesn't preserve the isolation 
property of transactions. It can still help in some situations.
Else, we can do the contrary and only stores changes on a commit, while 
intercepting calls to ldap function to overwrite the result by our 
temporary transaction data.

The naive, non transactional, approach seemed the most natural to me as 
we don't "pervert" the nature of ldap storage and let the developer 
chooses his data support knowing its strengths and weaknesses. Still, if 
there is a need for something more sophisticated, I'll be glad to try my 
best to incorporate it.

Regards
Olivier