/** * Checks if this is nullable parameter. * Returns ResultSetMetaData.columnNullableUnknown.. * * @param param the column index (1,2,...) * @return ResultSetMetaData.columnNullableUnknown */ @Override public int isNullable(int param) throws SQLException { try { debugCodeCall("isNullable", param); return getParameter(param).getNullable(); } catch (Exception e) { throw logAndConvert(e); } }