db4o Developer Community

srdemart: Sorry, but I'm not quite following you.  If a client issues a cascading delete on a root object containing 10,000 objects (config'd to cascade down the full graph).  And I have a external listener attached to ''Deleting'' on the client's ObjectContainer, won't the ObjectServer send 10,000 calls to the client listener?  ...

srdemart: After further thinking about it, I think this may not be a problem if the ''Deleting'' callback is called on the client.  I assume if I cancel, then no delete request would be sent to the server.  Am I correct with this assumption? No. All delete callbacks will happen on the server. Still, the impact of a single delete ...

I don't think there is a problem. When an object is deleted on a client by issueing a toplevel ObjectContainer#delete() call, the server is notified about it, just about this one single object. The actual delete happens on the server. If some kind of action needs to be taken with callbacks, this will happen on the server, without sending any ...