On Sun, Feb 8, 2009 at 12:23 PM, Anand Patil < anand.prabhakar.pa...@gmail.com> wrote:
> > Hello again, > > In my application, I'll frequently want to quickly discard all the > changes made during a transaction involving many refs. I don't want to > force the refs to roll back to their values at the beginning of the > transaction, I just want to end the transaction immediately and skip > the write stage; updates made in other transactions should still > 'stick'. What's the most efficient way to do this? > > Thanks again! > Anand > You can abort a transaction by throwing an exception, but in that case all refs automatically retain their pre-transaction values. You can't partially roll back a transaction, because by definition all changes to refs in a transaction occur or none do. By the way, what do you mean by "other transactions"? - Transactions running on other threads? Aborting in one thread does not affect refs in other threads. - Transactions that completed earlier in time on the same thread? Those values are not affected by aborting a later transaction. - dosync calling dosync on the same on the same thread? Aborting from an inner dosync aborts the whole stack of dosyncs in that thread. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
