Two ways traditionally to handle this are a maximum lifetime interval (pages expire after a set period of time elapses) and a maximum number of pages (oldest page expires after a set number of pages are added).
On 10/4/05, Zhong Li <[EMAIL PROTECTED]> wrote: > Yeah, it is problem we need deal with. I think "backtracking and page > refreshing" should in a "safe" scope, I means something like transaction. We > can't go back forever. We need find a way to define "transaction". It is > something different with dataSave issue. > > > > -- > Zhong Li > > WebJabber.Net
