Java Database Connectivity (JDBC)

Hi,

In my code I have a Statement Object. I have executed a query which returns a resultset.
In my code i need to iterate through the resultset twice. First iteration goes through alright but when I try to execute the code

rs.beforeFirst();

I get following exception.
java.sql.SQLException: Invalid operation for forward only resultset : beforeFirst

I want to know the method of changing forward only property of ResultSet or is there any other way of tackling the problem if I don't want to execute the query twice.

Thanks