[SOLVED]:Is it possible to use functions like decode in 'setWhereClause()'?

Hello,
My requirement is that I have 2 poplists - Country and States.
When I select a country,the corresponding states of that country should get populated in the states poplist.
The approach I took is that :
I selected firePartialAction as ActionType in Country poplist. Then I called a function to VOImpl of StatesVO and set the where clause there.
Now I was thinking about using decode as there is no direct connection between the CountryVO and StatesVO.
Is it possible to use functions like decode in 'setWhereClause()'?
For Example:
setWhereClause("DECODE(LOOKUP_TYPE,'XXC_IND_STATES','IND','XXC_US_STATES','US') = :1");
setWhereClauseParam(0,Country);
executeQuery();
When I tried running the page,no error was given but when the country poplist was changed - there is no change in states poplist.
If its not possible to use decode in setWhereClause(), could you please guide me as to how I can write a query to retrieve a value from a table and store it in a variable 'A'- so that I can pass that variable 'A' in setWhereClauseParam function .
Message was edited by:
Anju Susan

That kewl, but for u knowledge u can add anything in ur where clause of query through ur code in Voimpl class. It is even possible to do change entire query, see Voimpl class methods in javadoc.
--Mukul

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[SOLVED]:Is it possible to use functions like decode in 'setWhereClause()'?

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