I've found this nice post of Fabio Maulo: http://fabiomaulo.blogspot.com/2009/03/ensuring-updates-on-flush.html
I think this is what I need Luca -- You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nhusers?hl=en.
