1. Collections and DB supplied primary keys forum.hibernate.orgI have done some research on this (google, 'in action', and forums) but haven't found a definative best practice. I was looking for feedback on how to work with a collection of objects which do not yet have their key(id) defined. It is suggested that for one-many relationships the unordered type SET is the way to go. This works majestically in ... |
2. Maping one-to-many collections on a non-primary key forum.hibernate.orgCheers for that, it's almost exactly what I needed. Unfortunately as I can't use bi-directional associations with it as Hibernate complains that there isn't a unique row for the parent reference (justifiably so). And uni-directional associations result in a spurious update to set the parent reference which isn't going to fly for us. Has anyone managed to get around this? Also ... |
3. Collection filtering with compound primary keys forum.hibernate.orgNewbie Joined: Mon Apr 28, 2008 12:30 pm Posts: 1 I am mapping a legacy db with compound primary keys all over the place. The security requirements fit with hibernate filtering. I am hitting a SQLException because the SQL generated is invalid. Is collection filtering not supported with compond primary keys, or am I doing something stupid? The structure being mapped ... |