ADF dynamic ViewObject based on query. how to get attributes?

hi.
i have an read-only view object based on query like this:
SELECT :func(:paramm) as EMP_SAL from dual
and set :func & :paramm parameter by vo.setNamedWhereClauseParam(..) function.
but i couldn`t get EMP_SAL attribute after executeQuery command.
in another case i would set new whole Query by vo.setQuery(..) but the problem exists.
please help me. how to get attribute in such vo objects!
thanks!
Morena!

thanks to Quick reply!
i seek into code and found a uninitialized Parameter in view object. error has gone after correct the problem!
and now could get the attribute value.
thanks so much!
/\/\ o r e n a!

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Can anybody please advise what are the ways to get the required sum of [Measures].[Amt] and count of [Customer].[Customer].[Customer Key].ALLMEMBERS dimension?
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