private IBaseExpression[] extractExpressions( IQueryResults qr )
private IScriptExpression[] extractExpressions( IQueryResults qr )
	private IBaseExpression[] extractExpressions( IQueryResults qr )	{		Collection col = qr.getPreparedQuery( )				.getReportQueryDefn( )				.getRowExpressions( );		return (IBaseExpression[]) col.toArray( new IBaseExpression[col.size( )] );	}