I'm using a Postgres table as the data source for a JTable 
in a Java app.  As a first approximation, I'm implementing
AbstractTableModel.getValueAt() like so:

    public Object getValueAt(int row, int col)
            rs_.absolute(row + 1);
            return rs_.getObject(col + 1);
        catch (Exception e)
        return null;

Where rs_ is a RecordSet object.  What I'm wondering is
whether it's better to call absolute() or relative() or
next()/previous().  If absolute() is the slowest call,
then I can cache the last row fetched and move relative
to that.

My suspicion is that next()/previous() is much faster
than absolute() when the record to be fetched is very near
the last record fetched.  I haven't actually tried it, but
I'd like some insight if others can already answer this
question based on knowledge of the server side and/or the
JDBC driver.

David B. Held
Software Engineer/Array Services Group
200 14th Ave. East,  Sartell, MN 56377
320.534.3637 320.253.7800 800.752.8129

---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]

Reply via email to