* @see java.sql.ResultSet#getType
   */
  void setType(int type) throws SQLException;

  /**
   * Sets the concurrency of this <code>RowSet</code> object to the given
   * concurrency level. This method is used to change the concurrency level
   * of a rowset, which is by default <code>ResultSet.CONCUR_READ_ONLY</code>
   *
   * @param concurrency one of the <code>ResultSet</code> constants specifying a
   *        concurrency level:  <code>ResultSet.CONCUR_READ_ONLY</code> or
   *        <code>ResultSet.CONCUR_UPDATABLE</code>
   * @exception SQLException if a database access error occurs
   * @see ResultSet#getConcurrency
   */
  void setConcurrency(int concurrency) throws SQLException;
  
  //-----------------------------------------------------------------------
  // Parameters
  //-----------------------------------------------------------------------

  /** 
   * The <code>RowSet</code> setter methods are used to set any input parameters
   * needed by the <code>RowSet</code> object's command.
   * Parameters are set at run time, as opposed to design time.
   */

  /**
   * Sets the designated parameter in this <code>RowSet</code> object's SQL
   * command to SQL <code>NULL</code>.
   *
   * <P><B>Note:</B> You must specify the parameter's SQL type.
   *
   * @param parameterIndex the first parameter is 1, the second is 2, ...
   * @param sqlType a SQL type code defined by <code>java.sql.Types</code>
   * @exception SQLException if a database access error occurs
   */
  void setNull(int parameterIndex, int sqlType) throws SQLException;

  /**
     * Sets the designated parameter to SQL <code>NULL</code>.
     *
     * <P><B>Note:</B> You must specify the parameter's SQL type.
     *
     * @param parameterName the name of the parameter
     * @param sqlType the SQL type code defined in <code>java.sql.Types</code>
     * @exception SQLException if a database access error occurs or
     * this method is called on a closed <code>CallableStatement</code>
     * @exception SQLFeatureNotSupportedException if the JDBC driver does not support
     * this method
     * @since 1.4
     */
    void setNull(String parameterName, int sqlType) throws SQLException;

  /**
   * Sets the designated parameter in this <code>RowSet</code> object's SQL
   * command to SQL <code>NULL</code>. This version of the method <code>setNull</code>
   * should  be used for SQL user-defined types (UDTs) and <code>REF</code> type
   * parameters.  Examples of UDTs include: <code>STRUCT</code>, <code>DISTINCT</code>,
   * <code>JAVA_OBJECT</code>, and named array types.
   *
   * <P><B>Note:</B> To be portable, applications must give the
   * SQL type code and the fully qualified SQL type name when specifying
   * a NULL UDT or <code>REF</code> parameter.  In the case of a UDT,
   * the name is the type name of the parameter itself.  For a <code>REF</code> 
   * parameter, the name is the type name of the referenced type.  If 
   * a JDBC driver does not need the type code or type name information, 
   * it may ignore it.     
   *
   * Although it is intended for UDT and <code>REF</code> parameters,
   * this method may be used to set a null parameter of any JDBC type.
   * If the parameter does not have a user-defined or <code>REF</code> type,
   * the typeName parameter is ignored.
   *
   *
   * @param paramIndex the first parameter is 1, the second is 2, ...
   * @param sqlType a value from <code>java.sql.Types</code>
   * @param typeName the fully qualified name of an SQL UDT or the type
   *        name of the SQL structured type being referenced by a <code>REF</code>
   *        type; ignored if the parameter is not a UDT or <code>REF</code> type
   * @exception SQLException if a database access error occurs
   */
  void setNull (int paramIndex, int sqlType, String typeName) 
    throws SQLException;

  /**
     * Sets the designated parameter to SQL <code>NULL</code>.
     * This version of the method <code>setNull</code> should
     * be used for user-defined types and REF type parameters.  Examples
     * of user-defined types include: STRUCT, DISTINCT, JAVA_OBJECT, and
     * named array types.
     *
     * <P><B>Note:</B> To be portable, applications must give the
     * SQL type code and the fully-qualified SQL type name when specifying
     * a NULL user-defined or REF parameter.  In the case of a user-defined type
     * the name is the type name of the parameter itself.  For a REF
     * parameter, the name is the type name of the referenced type.  If
     * a JDBC driver does not need the type code or type name information,
     * it may ignore it.
     *