I am trying to map a composite key using components. I have looked at the examples and the forums but I have not seen anything close to this scenario:

I have an object(Kpi) that has another object for a key(KpiId). KpiId contains two properties a string for the id and a Version object containing a number and another object containg the effective dates(start and end).

What is the best practice for this scenario?

Thanks for your help.