protected void handleInteger(ResultSet rs, int columnIndex, ContentHandler handler)
            throws SQLException, SAXException {
        int i = rs.getInt(columnIndex);
        if (!rs.wasNull()) {
            addAllCharacters(Integer.toString(i), handler);
        }
    }
General base class to iterate through rows of a JDBC table
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-jdbc-commons/src/main/java/org/apache/tika/parser/jdbc/JDBCTableReader.java