Grails criteria with operations between fields

[Andrea Taini]

Hi!
How is possible to make a query with criteria (and may be also in HQL) using results between numeric attributes?

Es:

class MoneyWallet{

int pound
int dollar

}

And I would like to have a list of all the MoneyWallets that have

(pound * 1 + dollar * 2) > 100

Thank you in anticipation for your help,
Andrea