public byte getByte(int columnIndex) throws SQLException {
        throw new UnsupportedOperationException();
    }
Retrieves the value of the designated column in the current row
of this <code>CachedRowSetImpl</code> object as a
<code>byte</code> value.

@param columnIndex the first column is <code>1</code>, the second
       is <code>2</code>, and so on; must be <code>1</code> or larger
       and equal to or less than the number of columns in the rowset
@return the column value as a <code>byte</code> in the Java programming
language; if the value is SQL <code>NULL</code>, the result is <code>0</code>
@throws SQLException if (1) the given column index is out of bounds,
           (2) the cursor is not on one of this rowset's rows or its
           insert row, or (3) the designated column does not store an
           SQL <code><b>TINYINT</b>, SMALLINT, INTEGER, BIGINT, REAL,
           FLOAT, DOUBLE, DECIMAL, NUMERIC, BIT, CHAR, VARCHAR</code>
           or <code>LONGVARCHAR</code> value. The bold SQL type
           designates the recommended return type.
@see #getByte(String)
src/main/java/org/replicadb/rowset/sun/rowset/internal/SyncResolverImpl.java