trunk/TAO/docs/tutorials/Quoter/On_Demand_Activation/Quoter.idl


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//
// $Id$
//

module Quoter
{
  exception Invalid_Stock_Symbol {};
  // Used to report an invalid stock name

  // Forward declare the Stock interface
  interface Stock;

  interface Stock_Factory
  {
    // = TITLE
    //   A factory class for the stock quoter interfaces
    //
    // = DESCRIPTION
    //   Return the Quoter interfaces based on their names
    //
    Stock get_stock (in string stock_symbol)
      raises (Invalid_Stock_Symbol);
  };

  interface Stock
  {
    // = TITLE
    //   A simple interface to query the name and price of stock
    //
    // = DESCRIPTION
    //   Return the price and name of a single stock
    //

    readonly attribute string symbol;
    // Get the stock symbol.

    readonly attribute string full_name;
    // Get the name.

    double price ();
    // Get the price

  };

  interface Single_Query_Stock : Stock {
    double get_price_and_names (out string symbol,
                                out string full_name);
  };
};