Thanks Datanucleus team, I want to go ahead with JPA because that is a standard pushed by Sun itself.
Follow up question to the JPA - If I add annotations and load the class, I will *NOT* have to *RESTART* the server. If I make changes to XML metadata file, I will have to *RESTART* the server. Are those correct assumptions? By the way, I attended Sun's Virtual conference yesterday and they were coming out with JPA 2.0 with metadata APIs. Hopefully that gets incorporated in Datanucleus soon. Thanks for all the help On Wed, Dec 16, 2009 at 4:41 AM, datanucleus <andy_jeffer...@yahoo.com>wrote: > > Is it possible through JPA? if yes, does appengine allow it? > > JPA doesn't provide a metadata API, so you'd have to extend that > provided example to add on either annotations to the generated > classes, or XML metadata file generation. > > > if not, does Appengine allow Bytecode instrumentation so that we can > > create classes dynamically according to the link above using JDO. > > GAE/J provides access to JDO hence you can use anything that goes with > it, obviously including bytecode enhancement (since that is what the > DataNucleus enhancer already does with GAE/J) > > -- > > 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.
