Data schema change is quite easy if you use a MapReduce job. See http://ikaisays.com/2010/07/09/using-the-java-mapper-framework-for-app-engine/
You can still use your JDO instructions in a mapper, even if the mapper performance is not at its best if not using the low-level API. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine-java/-/aWk_6i5dxm0J. 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.