EJBQL: Arithmetic operations

[Hugi Thordarson]

Hi all.

Can I write EJBQL that performs arithmetic operations, like multiplication? 
Something like:

select e.text, e.price-(e.price*e.discountPercentage) from Entry e ?

On a related note; does there exist a complete reference of Cayenne’s EJBQL?

Cheers,
- hugi