public TransferMoneyContext(TransferMoneySource source,
TransferMoneySink sink, double amount)
{
Source = source;
Sink = sink;
Amount = amount;
}
public static void TransferTo(this TransferMoneySource self, TransferMoneySink recipient, double amount)
{
if (self.Balance < amount)
{
throw new ApplicationException("insufficient funds");
}
self.Withdraw(amount);
self.Log("Withdrawing " + amount);
recipient.Deposit(amount);
recipient.Log("Depositing " + amount);
}
// the interface is used here as a jumpboard for kicking off the extension method (it works as a methodful role) instead of the traditional use of interfaces
public static void TransferTo(this TransferMoneySource self, TransferMoneySink recipient, double amount)
{
// The implementation of the use case by using the "primitive methods" of the domain objects
if (self.Balance < amount)
{
throw new ApplicationException("insufficient funds");
}
self.Withdraw(amount);
self.Log("Withdrawing " + amount);
recipient.Deposit(amount);
recipient.Log("Depositing " + amount);
}
public static void TransferTo(this TransferMoneySource self, TransferMoneySink recipient, decimal amount)
{
// The implementation of the use case
if (self.Balance < amount)
{
throw new ApplicationException(
"insufficient funds");
}
self.Withdraw(amount);
self.Log("Withdrawing " + amount);
recipient.Deposit(amount);
recipient.Log("Depositing " + amount);
}
public static void TransferTo(this TransferMoneySource self, TransferMoneySink recipient, double amount)
{
if (self != null && recipient != null)
{
if (self.Balance < amount)
{
self.Log("Insufficient funds");
}
else
{
self.Withdraw(amount);
self.Log("Withdrawing " + amount);
recipient.Deposit(amount);
recipient.Log("Depositing " + amount);
}
}
}
public void To(TransferMoneySink sink)
{
this.sink = sink;
DoIt();
}
public TransferMoneyContext(TransferMoneySource source, TransferMoneySink sink, decimal amount)
{
Source = source;
Sink = sink;
Amount = amount;
}
