Re: Problem with sequence manager

[Armin Waibel]

Guillaume Nodet wrote:

I only added the following method:

        public static void clearCache() {
                if (sequencesMap != null) {
                        sequencesMap.clear();
                }
        }
It should be no problem to add such a method, but I can't change the 
sequence manager interface (maybe for 1.1), so you have to cast. Maybe 
we call the method 'reset()' and introduce this method in sequence 
manager interface for 1.1.
In reset() method depended on the implementation the sequence manager 
was set to an initial state.
What do you think? Better method name?

regards,
Armin
and called it when i destroy the tables, and everything
works fine now.
-----Message d'origine-----
De : Guillaume Nodet [mailto:[EMAIL PROTECTED]
Envoyé : vendredi 23 avril 2004 16:25
À : OJB Users List
Objet : Problem with sequence manager
Hi,

In my application, i can dynamically create and drop the tables
for storing ojb objects. The problem is that when i insert some
data, drop the tables, recreate them, and insert data, the sequence
manager is not re-initialized (i use SequenceManagerHighLowImpl)
so when inserting data in the newly created tables, the sequence
manager reuses caches sequences (in the sequencesMap), instead
of creating new ones. So when a sequence runs out of id, it looks
into the database, creates a new sequence and thus ids overlapp.
Could it be possible to add a method for clearing the cache of
sequences (stored in the sequencesMap attribute) ?
I will for the moment use my own sequence manager (a copy of
SequenceManagerHighLowImpl with the above method).
Thanks,

Guillaume

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