Hi Robert, Could you see if you have the the latest GPE version installed (1.2.0)? There was a known issue like you describe, but it has been fixed.
If you are already running the latest, we can investigate further to see what's going on. Thanks, jason On Fri, Dec 18, 2009 at 3:36 PM, Robert Allard <rnall...@gmail.com> wrote: > Problem: > The “DataNucleus Enhancer” runs continuously and appears to cause the > following error in the “Guestbook” demo application. > Error message: > “Class guestbook.Greeting does not seem to have been enhanced ... " > has no table in the database, but the operation requires it... > > I am testing the “Guestbook” demo application in AppEngine for Java > with Eclipse 3.5 under Windows 7 with “AppEngine_SDK_1.3.0” and > “AppEngine_SDK_1.2.8”. > I have reached the “Using the Datastore with JDO” step, specifically > the “Queries With JDOQL” step where I update the “guestbook.jsp” file. > I have determined that the error occurs on the line with: > “List<Greeting> greetings = (List<Greeting>) pm.newQuery(query).execute > ();” > > After playing around with various alternatives I have come to the > conclusion that the cause is the continuous running of the > “DataNucleus Enhancer”. I concluded this because at one point the > enhancer froze and the demo program suddenly worked. > I have looked in the “Guestbook\war\WEB-INF\classes\guestbook” > directory and the classes there are continuously being deleted and > recreated when the “DataNucleus Enhancer” runs continuously. > > Can anyone tell me how to make the “DataNucleus Enhancer” behave? > or provide me with another explanation and solution. > > I have read the existing entries concerning this and similar errors > but none of them apply. > I have installed Eclipse 3.5 to develop both Android and AppEngine > applications. > > Robert > > -- > > 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. > > > -- 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.
