How to determine when an object is inserted, updated or deleted on callback method PreUpdate

[Miroslav Nachev]

Hi,

Can somebody tell me how to determine what is the real action (insert, 
update or delete) on callback method PreUpdate? I am surprised that 
every time when some modify action (insert, update or delete) is happen, 
PreUpdate method always is invoked.

Also I see that PreRemove is never called on remove?


Regards,
Miro.