setRows(buffer.toString());
    public void setRows(String rowstring) {	if (rowstring != null) {	    StringTokenizer tokens = new StringTokenizer(rowstring, ",");	    String[] newrows = new String[tokens.countTokens()];	    int i=0;	    while (tokens.hasMoreTokens())		newrows[i++] = tokens.nextToken().trim();	    setRows(newrows);	}    }