@Override
    public SudokuBoard read() throws WrongValueException, WrongIndexException, SQLException {
        SudokuBoard brd = new SudokuBoard();
        try {
            Connection connection = DriverManager.getConnection("jdbc:derby:SudokuDB;create=false;user=test;password=test:");
            Statement stm = connection.createStatement();
            ResultSet r = stm.executeQuery("select max(board) as m from fields");
            int board;
            if (r.next()) {
                board = r.getInt("m");
            } else {
                board = 0;
            }
            r = stm.executeQuery("select * from fields where board=" + board);


            while (r.next()) {
                boolean editable = (r.getInt("is_editable") == 1 ? true : false);
                SudokuField sf = brd.getField(r.getInt("x"), r.getInt("y"));
                sf.setEditable(editable);
                sf.setFieldValue(r.getInt("value"));

            }
            connection.close();
            return brd;
        } catch (SQLException e) {
            logger.error("Problem with Database");
        }
        return brd;
    }

    @Override
    public void write(final SudokuBoard obj) throws SQLException {
        try {
            Connection connection = DriverManager.getConnection("jdbc:derby:SudokuDB;create=false;user=test;password=test");
            Statement stm = connection.createStatement();
            int editable;
            ResultSet r = stm.executeQuery("select max(board) as m from fields");
            r.next();
            int board = r.getInt("m") + 1;
            for (int x = 0; x < 9; x++) {
                for (int y = 0; y < 9; y++) {
                    editable = (obj.getField(x, y).isEditable() ? 1 : 0);
                    stm.execute("insert into fields(board, posx, posy, value, Edit) " + "values ("
                            + board + ", " + x + ", " + y + ", " + obj.getValue(x, y) + ", " + editable + ")");
                }
            }
            connection.close();
        } catch (SQLException e) {
            logger.error("Problem with Database");
        } catch (WrongIndexException e) {
            logger.error("Wrong Index");
        }
    }