Hello, You have to use it in a Key object or use it as key (may not be possible so directly because of entity groups)
I would recommend including in Key object: see http://code.google.com/appengine/docs/java/datastore/dataclasses.html#Class_and_Field_Annotations didier On Jul 1, 4:17 pm, nevzat <u...@myjavasolutions.com> wrote: > I am trying to make one of my field unique, but cannot do it. I used > annotations which did not work. Then I try to do it in jdo xsd file > and that did not work either. Can you please help me out? > > here is an example: > public class AccountInfo { > > @Persistent > private String userName; > > } > > I want to make userName unique. > > Thanks in advance for your time. -- 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.
