Expression Builder Question

I am trying to convert some existing sql to use TopLink ExpressionBuilder. I have a particular type of thing which I can't find a good solution for.
I want to include a calculation, so for example, I want to say
Where MY_COLUMN * 10 > REQUIRED_VALUE
The only way I've managed to do it so far is to use the appendSQL() method. This gives me a problem because this method is deprecated and I can't see what I should use instead. Secondly, I am using a column name in this bit of SQL, if I try to do it 'properly' and join the SQL with a get for my mapping item which maps to MY_COLUMN then add some more SQL it all falls to pieces. This means I have to 'hard code' my column name in the SQL which is not where I want to be.
Can you tell me if there is a proper way to generate calculations in sql expressions.

You can use the ExpressionMath class.
Expression expression = ExpressionMath.multiply(builder.get("myColumn"), 10).greaterThan(requiredValue);
The appendSQL() method was replaced by the prefixSQL() and postfixSQL() methods.

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