Steve Ebersole ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiN2UxZDI3YjA3... ) / Improvement ( https://hibernate.atlassian.net/browse/HHH-16288?atlOrigin=eyJpIjoiN2UxZD... ) HHH-16288 ( https://hibernate.atlassian.net/browse/HHH-16288?atlOrigin=eyJpIjoiN2UxZD... ) Ability to enhance a class to add virtual @Id, @Version ( https://hibernate.atlassian.net/browse/HHH-16288?atlOrigin=eyJpIjoiN2UxZD... ) Change By: Steve Ebersole ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) E.g. I can see some usefulness in: {noformat}/** * A class from an external source - aka cannot be changed */ public class Person { String firstName; String lastName; ... }{noformat} {noformat}<entity-mappings> <entity name="Person"> <attributes> <!-- virtual attributes --> <id .../> <version ../> <basic name="firstName" .../> <basic name="lastName" .../> </attributes> </entity> </entity-mappings>{noformat} In a way its a natural replacement for the legacy support for of persisting entities with “external ids”. ( https://hibernate.atlassian.net/browse/HHH-16288#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16288#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100217- sha1:2199b34 )