1. Define a distributed object consisting of a record and an array, using CORBA. Also provide mechanism to provide communication between distributed objects

2. How would you summarize the moral of the fable?

Sol184:

1. Define a distributed object consisting of a record and an array, using CORBA. Also provide mechanism to provide communication between distributed objects.

To define a distributed object consisting of a record and an array using CORBA, we can use the Interface Definition Language (IDL) to specify the object's interface. Here is an example IDL code:

module MyObjects {

struct MyRecord {

long id;

string name;

float score;

};

interface MyArray {

MyRecord getRecord(in long index);

void setRecord(in long index, in MyRecord record);

long size();

};

};

This IDL code defines a module called "MyObjects" that contains a struct called "MyRecord" and an interface called "MyArray". MyRecord contains three fields: an integer ID, a string name, and a floating-point score. MyArray defines three methods: getRecord(), setRecord(), and size(). The getRecord() method returns a MyRecord object at a specified index in the array. The setRecord() method sets the MyRecord object at a specified index in the array. The size() method returns the number of elements in the array.

To provide communication between distributed objects, we can use CORBA's object request broker (ORB). The ORB handles the communication between the client and server objects. The client object can invoke methods on the server object as if it were a local object, and the ORB takes care of the communication details. Here is an example code snippet for a client object that uses the MyArray interface:

#include

MyArray_var myArray;

MyRecord record;

// Initialize the ORB

CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);

// Get a reference to the remote object

CORBA::Object_var obj = orb->string_to_object("IOR:0123456789abcdef0123456789abcdef0123456789abcdef");

// Narrow the reference to the MyArray interface

myArray = MyArray::_narrow(obj);

// Call the methods on the remote object

long size = myArray->size();

record = myArray->getRecord(0);

record.score = 4.5;

myArray->setRecord(0, record);

1. How would you summarize the moral of the fable?

The moral of the fable "The Tortoise and The Geese" is that slow and steady wins the race. The Tortoise, despite being slow, was able to win the race against the fast and overconfident Hare by consistently moving forward without stopping or getting distracted. The fable teaches us that persistence and determination can lead to success, even when faced with seemingly insurmountable challenges.