You could also write your own Visitor and handle the deletes yourself if you wish: http://docs.transfer-orm.com/html/transferapi/transfer/com/Transfer.html#visitObjectGraph()
On Wed, Apr 1, 2009 at 8:28 AM, Brian Kotek <[email protected]> wrote: > All of the cascade methods traverse the entire object graph. There is no > "up" or "down" in an object graph, objects are related to other objects. How > is Transfer supposed to know "which way" you think is "down"? > > In essence, when it comes to deletes you almost certainly don't want to be > using cascadeDelete, it's just far too dangerous unless you're absolutely > sure what is going to happen. Either delete the items manually or rely on > delete cascading in your database (and make sure you purge the cache as > necessary). > > > > On Wed, Apr 1, 2009 at 8:19 AM, Jeroen Knoef <[email protected]> wrote: > >> >> Hi all, >> The cascadeDelete function traverses all relationships, both up and >> down. This appears counter intuitive to me. As far as I know, DBMS's >> cascade in one direction, down to records that are referencing the >> record being deleted. It looks natural to me if Transfer would have >> implemented a similar functionality. With the current implementation, >> this method is possibly very dangerous, because a delete of some >> record could clear out the whole database. >> >> I know there is the depth argument, but my objects don't always know >> how deep to go. Also, a change in the data model might lead to a code >> change, which is what Transfer is abstracting. >> >> Can you explain why this method behaves as it does? Maybe with some >> examples where this behaviour is just what you need? I'm quite curious >> because I couldn't come up with one myself.... thanks for replying. >> >> Jeroen >> >> >> >> > --~--~---------~--~----~------------~-------~--~----~ Before posting questions to the group please read: http://groups.google.com/group/transfer-dev/web/how-to-ask-support-questions-on-transfer You received this message because you are subscribed to the Google Groups "transfer-dev" 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/transfer-dev?hl=en -~----------~----~----~----~------~----~------~--~---
