How do I get out the number of columns from a ScrollableResult ?

When using the java.sql package, it can be done like this :

//Assume results is of class java.sql.ResultSet
//Assume rsmd id os class java.sql.ResultSetMetaData

rsmd = results.getMetaData ( );
numCols = rsmd.getColumnCount ( );

How do I do the similar with Hibernate ?
For the moment, I have the following code :

//Assume hql is an interface of net.sf.hibernate.Query
//Assume results is an interface of net.sf.hibernate.ScrollableResult
hql = session.createQuery(sql);
results = hql.scroll();

How do I continue to get the number of columns out from "results"

Cheers