///////////////////////////////////////////////////////////////////////
//  client.cpp - uses interface methods                              //
//                                                                   //
//  Demonstrates use of an abstract interface to communicate with    //
//  several product class objects.                                   //
//                                                                   //
//  Jim Fawcett, CSE687 - Object Oriented Design, Spring 2001        //
///////////////////////////////////////////////////////////////////////

#include <iostream>
#include <string>
#include "abstract.h"
using namespace std;

void main() {

  cout << "\n  Demonstrating use of Abstract Interface "
       << "\n         with static Factory Method       "
       << "\n =========================================\n";

  // use abstract interface's static creational method

  productAbstraction *pAP = productAbstraction::createProduct();
  
  // use the interface pointer to call implementation's methods

  cout << endl;
  pAP->hello();
  pAP->request("a request from client");
  string productReply = pAP->reply();
  cout << "\n  " << productReply.c_str() << endl;

  // destroy implementation

  delete pAP;

  cout << "\n\n";
}