How to use data in a ResultSet when only one record in set?

Question

Hi.
Using a prepared statement which invokes a SELECT * from <table> where <primary key> = <unique value>.
This is executed and the results sent to a resultSet.
The only problem is that only one entry is in the resultSet. I want to parse the results and invoke a new class based on the results.
So I have:
statement = conn.prepareStatement ("SELECT First_Name, Last_Name, Street, Unit, City, Province, Postal_Code" +
" from Customer where CustomerID = ?");
statement.setInt (1, custID);
rset = statement.executeQuery();
rset.next();
cust = new Customer (custID,
rset.getString ("First_Name"),
rset.getString ("Last_Name"),
rset.getString ("Street"),
rset.getString ("Unit"),
rset.getString ("City"),
rset.getString ("Province"),
rset.getString ("Postal_Code"));
statement.close();
rset is a ResultSet. And I'm pretty sure that something like this is WRONG. But one thing I want to know, is there ANY way to properly parse a resultset with only one record?
Thanks.

Answer 1

I think I should clarify what I was doing: I'm trying to insert a record into a table, and with the ID that I obtain, use it to retrieve the data.
I did put a commit in there, but someone suggested that the commit won't work in this scenario.
Here is bits of the code that I'm using. By the time insertCustomer is invoked, custID is already populated. The insert works because I checked the table afterwards using a sql query and all my entries posted are there.
    private void insertCustomer (HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException
        Connection conn = null;
        PreparedStatement statement = null;
        try {
            conn = DriverManager.getConnection (url, userid, password);
            statement = conn.prepareStatement ("INSERT INTO CUSTOMER (CustomerID, First_Name, Last_Name," +
                    " Street, Unit, City, Province, Postal_Code) values (?, ?, ?, ?, ?, ?, ?, ?)");
            statement.setInt (1, custID);
            statement.setString (2, firstname);
            statement.setString (3, lastname);
            statement.setString (4, address);
            statement.setString (5, unit);
            statement.setString (6, city);
            statement.setString (7, province);
            statement.setString (8, postalcode);
            statement.executeUpdate();
            conn.commit();          
            statement.close();
        catch (SQLException e)
            throw new ServletException (e);
        finally
            try
                if(statement != null)
                    statement.close();
                if(conn != null)
                    conn.close();
            catch (SQLException e)
                throw new ServletException(e);
    private String getCustRec (HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException
        Connection conn = null;
        PreparedStatement statement = null;
        ResultSet rset = null;
        CustomerJDBC cust = null;
        try
            conn = DriverManager.getConnection (url, userid, password);
            statement = conn.prepareStatement ("SELECT First_Name, Last_Name, Street, Unit, City, Province, Postal_Code" +
                    " from Customer where CustomerID = ?");
            statement.setInt (1, custID);
            rset = statement.executeQuery();
            rset.next();
            cust = new CustomerJDBC (custID,
                    rset.getString ("First_Name"),
                    rset.getString ("Last_Name"),
                    rset.getString ("Street"),
                    rset.getString ("Unit"),
                    rset.getString ("City"),
                    rset.getString ("Province"),
                    rset.getString ("Postal_Code"));
            statement.close();
        catch (SQLException e)
            throw new ServletException (e);
        finally
            try
                if(statement != null)
                    statement.close();
                if(conn != null)
                    conn.close();
            catch (SQLException e)
                throw new ServletException(e);
        return "/CustomerCreatedJDBC.jsp";
    }The Constructor method of the class CustomerJDBC appears something like this:
public CustomerJDBC (int id, String fname, String lname, String addr, String unit, String city, String prov, String pcode)
        this.custID = id;
        this.firstname = fname;
        this.lastname = lname;
        this.address = addr;
        this.unit = unit;
        this.city = city;
        this.province = prov;
        this.postalcode = pcode;     
    }Thanks for your help.
Edited by: tahna_los on Nov 16, 2008 11:49 PM