Thanks for the suggestions, Ian's sounds unrealistic (to me at least)
Ronaldo, could you please explain more about the method you are using? or post some references/url's so i could read some more? Thanks! On Oct 30, 10:33 am, Ian Marshall <ianmarshall...@gmail.com> wrote: > You might want to implement an alternative procedure of the following > stages to change the data type of your data mamber = field: > > 1. Add the data member quantityToAddNew of data type Integer. Use > this in your code instead of quantityToAdd. Deploy. > 2. After a suitable delay (at least 24 hours?): change the data type > of the data member quantityToAdd to Integer. Use this in your code > instead of quantityToAddNew. Deploy. > 3. After a suitable delay (at least 24 hours?): remove the data > member quantityToAddNew. Deploy. You're done. > > Enjoy? > > On Oct 29, 11:44 pm, Ronoaldo José de Lana Pereira > > > > > > > > <rpere...@beneficiofacil.com.br> wrote: > > Sine you are talking about _ah_SESSION stuff I suppose you are serializing > > ToBuyBeans to the sessions. On AppEngine, sessions are implemented using a > > combination of datastore and memecache. When you deleted your old session > > data from the datastore, the memcache was still there, and only when they > > got flushed your problem was "automatic" solved. > > > Sadly, I was having this trouble too previously, and the only way to get > > rid of it was to deploy a versions that was trying to fetch data from > > session and "convert" to new format or invalidate the session. This is very > > odd, tought, so I started to store only unchanged data, like a JSON > > representation of you objects, that will never stop your app when you > > change your code and redeploy. Gson and flex-json are good start points, > > apart from the fact that they add some small conversion overhead before > > store data in session. > > > Hope this helps (sorry for typos ... I'm sleepy) > > > -Ronoaldo -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
