The Basic Sample Application

The OMG IDL for the Basic Sample Application

module UniversityB

{

   typedef unsigned long CourseNumber;
   typedef sequence<CourseNumber> CourseNumberList;

   struct CourseSynopsis
   {
        CourseNumber   course_number;
        string         title;
   };

   typedef sequence<CourseSynopsis> CourseSynopsisList;

   interface CourseSynopsisEnumerator
   {
        CourseSynopsisList get_next_n(
            in unsigned long number_to_get, 
            out unsigned long number_remaining
        );
         void destroy();
 };

   typedef unsigned short Days;
   const Days MONDAY    =  1;
   const Days TUESDAY   =  2;
   const Days WEDNESDAY =  4;
   const Days THURSDAY  =  8;
   const Days FRIDAY    = 16;
  
   struct ClassSchedule
   {
       Days           class_days; // bitmask of days
       unsigned short start_hour; // whole hours in military time
       unsigned short duration;   // minutes
   };

   struct CourseDetails
   {
       CourseNumber   course_number;
       double         cost;
       unsigned short number_of_credits;
       ClassSchedule  class_schedule; 
       unsigned short number_of_seats;
       string         title;
       string         professor;
       string         description;
   };

   typedef sequence<CourseDetails> CourseDetailsList;

   interface Registrar
   {
       CourseSynopsisList
       get_courses_synopsis(
          in string                    search_criteria,
          in unsigned long             number_to_get, // 0 = all
          out unsigned long            number_remaining,
          out CourseSynopsisEnumerator rest
       );
   CourseDetailsList get_courses_details(in CourseNumberList 
        courses);

   interface RegistrarFactory
   {
        Registrar find_registrar(
        );
   };
};

Generating the Client Stubs and the Skeletons

Starting the Server Application

Starting the ActiveX Client Application

Using the Client Applications in the Basic Sample Application

<A>   List all courses

<D>   Display course details

<E>   Exit