void setTransactionIsolation(int level) throws SQLException;

  /**
   * Retrieves the <code>Map</code> object associated with this
   * <code>RowSet</code> object, which specifies the custom mapping
   * of SQL user-defined types, if any.  The default is for the
   * type map to be empty.
   *
   * @return a <code>java.util.Map</code> object containing the names of
   *         SQL user-defined types and the Java classes to which they are
   *         to be mapped
   *
   * @exception SQLException if a database access error occurs
   * @see #setTypeMap
   */
   java.util.Map<String,Class<?>> getTypeMap() throws SQLException;

  /**
   * Installs the given <code>java.util.Map</code> object as the default 
   * type map for this <code>RowSet</code> object. This type map will be
   * used unless another type map is supplied as a method parameter.
   *
   * @param map  a <code>java.util.Map</code> object containing the names of
   *         SQL user-defined types and the Java classes to which they are
   *         to be mapped
   * @exception SQLException if a database access error occurs
   * @see #getTypeMap
   */
   void setTypeMap(java.util.Map<String,Class<?>> map) throws SQLException; 

  //-----------------------------------------------------------------------
  // The following properties may be used to create a Statement.
  //-----------------------------------------------------------------------

  /** 
   * Retrieves this <code>RowSet</code> object's command property.
   *
   * The command property contains a command string, which must be an SQL
   * query, that can be executed to fill the rowset with data.  
   * The default value is <code>null</code>.
   *
   * @return the command string; may be <code>null</code>
   * @see #setCommand
   */
  String getCommand();

  /**
   * Sets this <code>RowSet</code> object's command property to the given
   * SQL query.
   *
   * This property is optional
   * when a rowset gets its data from a data source that does not support
   * commands, such as a spreadsheet. 
   *
   * @param cmd the SQL query that will be used to get the data for this
   *        <code>RowSet</code> object; may be <code>null</code>
   * @exception SQLException if a database access error occurs
   * @see #getCommand
   */
  void setCommand(String cmd) throws SQLException;

  /** 
   * Retrieves whether this <code>RowSet</code> object is read-only.
   * If updates are possible, the default is for a rowset to be
   * updatable.
   * <P>
   * Attempts to update a read-only rowset will result in an
   * <code>SQLException</code> being thrown. 
   *
   * @return <code>true</code> if this <code>RowSet</code> object is
   *         read-only; <code>false</code> if it is updatable 
   * @see #setReadOnly
   */
  boolean isReadOnly();

  /**
   * Sets whether this <code>RowSet</code> object is read-only to the
   * given <code>boolean</code>.
   *
   * @param value <code>true</code> if read-only; <code>false</code> if 
   *        updatable
   * @exception SQLException if a database access error occurs
   * @see #isReadOnly
   */
  void setReadOnly(boolean value) throws SQLException;

  /**
   * Retrieves the maximum number of bytes that may be returned 
   * for certain column values. 
   * This limit applies only to <code>BINARY</code>,
   * <code>VARBINARY</code>, <code>LONGVARBINARYBINARY</code>, <code>CHAR</code>,
   * <code>VARCHAR</code>, <code>LONGVARCHAR</code>, <code>NCHAR</code>
   * and <code>NVARCHAR</code> columns.
   * If the limit is exceeded, the excess data is silently discarded.
   *
   * @return the current maximum column size limit; zero means that there
   *          is no limit
   * @exception SQLException if a database access error occurs
   * @see #setMaxFieldSize
   */