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For an explanation of concepts associated with CORBA applications and a description of the development process for CORBA applications, see Getting Started with Oracle Tuxedo CORBA Applications.The Basic sample application allows users to browse for available courses and get details on selected courses. Figure 3‑1 illustrates how the Basic sample application works.Figure 3‑1 The Basic Sample Application
{
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(
);
};
};
