Re: reads which modify data

Klaus Wuestefeld <[email protected]>
Newsgroups gmane.comp.java.prevayler
Message-ID <[email protected]>
Stop thinking in terms of "reads which modify data" and think about it
as "lazy evaluation", which is perfectly ok. Something like this:


Object executeQuery(Date executionTime) {

   synchronized (_system) {
      if (!isStateUpdatedTo(executionTime))
         updateStateWithReallyComplexAndPseudoRandomRulesTo(executionTime);
   }

   return queryStateWhatever();
}


See you, Klaus.

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