Frankly, after 3 months of development we decided to drop JDO and JPA at all. They simply doesn't fit in a NoSql model like the one used by gae. Basically if you're considering gae just a container "in the cloud" better moving to more standard services, like the ones offered by amazon. J2EE stack and all. But they won't ever scale massively. If you really want to try an app blazing fast and scalable, my personal suggestion for a serious application is to forget JDO and study the native api, much simpler and faster.
JDO could be useful to quickly start with some micro app. cheers Uberto On Fri, Jul 23, 2010 at 10:11 PM, ping <bernd.warm...@gmail.com> wrote: > Thank you very much! > So, it is not really a reason to switch to a common servlet-container > where i can completely use jdo or jpa just because gae does not > support joins? > My application does not have a complicated datamodel.... > > greets > > > > > > > On Jul 23, 11:36 am, Uberto Barbini <ube...@ubiland.net> wrote: >> On Fri, Jul 23, 2010 at 11:30 AM, ping <bernd.warm...@gmail.com> wrote: >> > Hello, >> > i read that the GAE implementation of JDO does not support "JOINS". >> > Is this right? >> >> yes >> >> > Whats the common workaround for it? >> >> fetch your data separately or create a materialized view and keep it >> updated with triggers >> >> cheers >> >> Uberto > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to google-appeng...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
