A simple question which is related to my previous question:

When you use a component class to wrap a composite-id in a table (see Reference 7.4)....must this component class be persisent or in other words...do I have to write a mapping-file for it?? Because actually I do not want to have it to be persistent, but as you can read in my previous question I have troubles with modelling associations to the class that has the composite-id which is wrapped in the component class....

THANX for any help....