C++ Money Transfer program listing

//
//  main.cpp
//  AgileBook
//
//  Created by James Coplien on 9/2/08.
//  Copyright Gertrud & Cope 2011. All rights reserved.
//

#include "TransferMoneyContext.h"
#include "PayBillsContext.h"

int main() {
  TransferMoneyContext *aNewUseCase = new TransferMoneyContext;
  aNewUseCase->doit();
  delete aNewUseCase;
  
  PayBillsContext *anotherNewUseCase = new PayBillsContext;
  anotherNewUseCase->doit();
  delete anotherNewUseCase;
}

/*
  *  TransferMoneyContext.cpp
  *  AgileBook
  *
  *  Created by James Coplien on 9/13/08.
  *  Copyright 2008 Gertrud & Cope. All rights reserved.
  *
  */
 
 #include "TransferMoneyContext.h"
 #include "Currency.h"
 #include "MoneySource.h"
 #include "MoneySink.h"
 #include "InvestmentAccount.h"
 #include "SavingsAccount.h"
 
 TransferMoneyContext::TransferMoneyContext(void): Context()
 {
   lookupBindings();
 }
 
 TransferMoneyContext::TransferMoneyContext(Currency amount, MoneySource *source, MoneySink *destination):
   Context()
 {
   // Copy the rest of the stuff
   sourceAccount_ = source;
   destinationAccount_ = destination;
   amount_ = amount;
 }
 
 void
 TransferMoneyContext::doit(void)
 {
   sourceAccount()->transferTo(amount());
 }
 
 void
 TransferMoneyContext::lookupBindings(void)
 {
   // These are somewhat arbitrary and for illustrative
   // purposes. The simulate a database lookup
   InvestmentAccount *investmentAccount = new InvestmentAccount;
   investmentAccount->increaseBalance(Euro(100.00));  // prime it with some money
 
   sourceAccount_ = investmentAccount;
   destinationAccount_ = new SavingsAccount;
   destinationAccount_->increaseBalance(Euro(500.00));  // start it off with money
   amount_ = Euro(30.00);
 }
 
 MoneySource*
 TransferMoneyContext::sourceAccount(void) const
 {
   return sourceAccount_;
 }
 
 MoneySink*
 TransferMoneyContext::destinationAccount(void) const
 {
   return destinationAccount_;
 }
 
 Currency
 TransferMoneyContext::amount(void) const
 {
   return amount_;
 }

/*
  *  PayBillsContext.cpp
  *  AgileBook
  *
  *  Created by James Coplien on 9/17/08.
  *  Copyright 2008 Gertrud & Cope. All rights reserved.
  *
  */
 
 #include "PayBillsContext.h"
 #include "MoneySource.h"
 #include "MoneySink.h"
 #include "InvestmentAccount.h"
 #include "SavingsAccount.h"
 #include "Creditor.h"
 
 
 PayBillsContext::PayBillsContext(void): Context()
 {
   lookupBindings();
 }
 
 void
 PayBillsContext::doit(void)
 {
   sourceAccount()->payBills();
 }
 
 void
 PayBillsContext::lookupBindings(void)
 {
   // These are somewhat arbitrary and for illustrative
   // purposes. The simulate a database lookup
   InvestmentAccount *investmentAccount = new InvestmentAccount;
   investmentAccount->increaseBalance(Euro(100.00));  // prime it with some money
   sourceAccount_ = investmentAccount;
 
   creditors_.push_back(new ElectricCompany);
   creditors_.push_back(new GasCompany);
 }
 
 MoneySource*
 PayBillsContext::sourceAccount(void) const
 {
   return sourceAccount_;
 }
 
 std::list
 PayBillsContext::creditors(void) const
 {
   return creditors_;
 }