Hi all, I am a bit confused about how to retrieve an object using JDO. I am using GWT, and I am trying the new approach GWT 2.1 using DTO objects with request factory, which needs the entity objects to have their keys stored as Long. But as I read the documentation about keys, I have the following question. I want to retrieve an object, specifically a user, by searching him with his username. Before, using keys, I searched him using the getObjectById call. But now, when I have a Long id, what should I do? 1. Using a query, and have as a parameter the username 2. Using the getObjectById. The first is known, but is there an option to use the second, and pass as a parameter again the username as I do with KeyFactory. Because in documentation it says:
"If the class uses a key field that is an unencoded string ID (String) or numeric ID (Long), getObjectByID() can take the simple value as the key parameter: Employee e = pm.getObjectById(Employee.class, "alfred.sm...@example.com");" But what it means as a parameter in the Long situation, it needs the id number? -- 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.
