Hello,
is there a posibility to automatically write change records to a table or logfile for some classes?

Example:

class person {
private int id;
private String name;
private string forename;
}

Persistent state:
1 Mueller Jon

-> Forename is updatet to George
New persistant state:
1 Mueller George

A change record similar to this should be generated:
Type: Person
Id: 1
Property: Forename
New Value: George
Old Value: Jon
Timestamp: 20090506101223

Thanks
Andi

You can do this by Intercepting Hibernate events.

Read section 12.3.2 from "Java Persistence With Hibernate".