You just need to retrieve it, change it and close the persistence manager. No makePersistent method needed.
For example: public void updateEmployeeTitle(User user, String newTitle) { PersistenceManager pm = PMF.get().getPersistenceManager(); try { Employee e = pm.getObjectById(Employee.class, user.getEmail()); e.setTitle(newTitle); } finally { pm.close(); } } If you're using Datastore , the principe is the same. On 2 July 2011 18:10, Swaminathan <swami...@gmail.com> wrote: > Hi, > > This is swaminathan, am now working on GAE/J. I am happy to deploy an > application in cloud using GAE. > > In my project, i have just created a record in the data store and i > need to update/overwrite the record. > > When i create a record, i get a auto generated Key. I have a query > like 'How to update/overwrite the data in the record. > > Can any one help me out. > > Thank You > > -- > 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-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. > > -- 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-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.