Max Ischenko wrote: > Geoffrey Talvola wrote: > >> Yes, that is definitely a problem. You are using class variables >> instead of instance variables. Class variables are shared among all >> instances, and this would explain why you are seeing the data shared >> across sessions. Put your initialization into the __init__ instead. >> In other words, instead of: >> >> class Cart: >> customer = Customer() >> >> You should use: >> >> class Cart: >> def __init__(self): >> self.customer = Customer() >> > > Isn't the instance variable problematic as well (to a lesser degree)? > AFAIK, WebKit shares servlet instances, so it's quite possible that > the same Cart() instance could be used to process requests from the > different (user) sessions? > > Correct me if I'm wrong, please.
First of all, Cart isn't a servlet, so the lifecycle of servlets isn't relevant here... But anyhow, Servlet instances are _recycled_. Once a servlet instance is done processing a request, it will be reused for a future request. This is why you need to use awake() and sleep() instead of __init__() and __del__() for per request initialization and finalization -- because __init__ is only called once, and __del__ normally isn't called at all, until the appserver shuts down. - Geoff ------------------------------------------------------- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click _______________________________________________ Webware-discuss mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/webware-discuss
