>From my reading and experience, the type of collection type used will determine if order is preserved. To maintain the ordering, a system field is added to the values. This may impact the CUD operations performance.
I don't need to keep the order in my current app so I am using Set for my property list, which does not involve any overhead. R. On Nov 15, 10:11 am, Maxim Veksler <ma...@vekslers.org> wrote: > It does, thank you very much. > > On Mon, Nov 15, 2010 at 4:47 PM, Didier Durand <durand.did...@gmail.com>wrote: > > > > > Hi, > > > Even though an array is not a Collection per say, it seems that > > because of > > >http://code.google.com/appengine/docs/java/javadoc/com/google/appengi... > > , > > you have to be careful with the order of items in an array as it says > > > "All Collections are prone to losing their sort order and their > > original types as they are stored in the datastore. For example, a > > TreeSet may be returned as a List from getProperty(java.lang.String), > > with an arbitrary re-ordering of elements. " > > > Hope it helps > > didier > > > On Nov 15, 3:21 pm, Maxim Veksler <ma...@vekslers.org> wrote: > > > Hello, > > > > We are using the low level API, it unclear from the documentation if the > > > sort order is maintained in list properties? > > > > So for example, if I serialize int[] intArray = { 1, 2, 3}, can I always > > > expect to receive back {1 , 2, 3} or is it possible that the order will > > be > > > randomized? > > > > Thank you, > > > Maxim. > > > -- > > 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-j...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine-java?hl=en. -- 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-j...@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.
