Hi, I'm trying to modelize with JDO but after a long experience on Oracle it's quite a tough stuff :)
Here is my simple Test case : I made a ModelBase entity with a pk (as encoded string) and two date fields (created and updated). The two fields will be filled through hooks. I have a first entity Season extending from ModelBase with two fields : a name and a code. I have a second entity CompetitionType extending from ModelBase with two fields : a name and a code. I have a third entity Competition extending from ModelBase with two fields : a Season and a CompetitionType. I'm not sure the way I have to do it : Should I have Season and a CompetitionType objtects in my Competition entity or just keys (as foreign keys in classic relational models)? I'd like to have the delete cascade ability (if I delete a Season, all Competitions linked wille be automatically deleted). Which strategy is the best practice? -- 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.
