Hello, Yes, it is possible: you have to query it via another of its properties, GAE will return you 1 or n entities having this value for the property.
Very much like an sql cursor. Which DS api do you use: low-level, JDO, JPA, Objectify ? (to point you to examples) regards didier On Feb 28, 10:35 am, Andrea <[email protected]> wrote: > Hi all , i'm pretty new to GAE ! > > I'm trying to retrieve an object from datastore without know its primary key > or ID . Is it possible? Can you help me? -- 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 [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
