Rules integration!

Calling rules from within virtual procedure or transformation:
Logical flow something like this:

For each row
convert row to array or other form that can be easily passed to
user-defined function (UDF)
custom UDF implementation accepts array/vararg params and converts
to pojo
UDF injects pojo to knowledge session
rules (potentially) modify pojo
UDF converts pojo back to array and returns to Teiid
procedure/transformation converts array back to record/row
modified values available to procedure/transformation logic
End

Assumptions:
1. UDF is not adding or removing columns/fields
2. UDF is not changing the datatypes of columns/fields
3. overhead of starting knowledge session for each record/row is
prohibitive. Need a stateful/persistent knowledge session. This may
mean a rules service of some kind, preferably in-process.