public override bool Execute()
{
base.Execute();
From.Withdraw(Amount); // throws InsufficientFundsException
Success = To.Deposit(Amount);
if (!Success)
{
From.Deposit(Amount);
return(false);
}
return(true);
}
public override bool Rollback()
{
if (!Success)
{
return(false);
}
base.Rollback();
To.Withdraw(Amount); // throws InsufficientFundsException
Reversed = From.Deposit(Amount);
if (!Reversed)
{
To.Deposit(Amount);
return(false);
}
return(true);
}
public override Transaction Rollback()
{
if (!Success)
{
throw new ArgumentOutOfRangeException(
"Not yet successfully completed. Nothing to rollback");
}
base.Rollback();
To.Withdraw(Amount); // throws InsufficientFundsException
Reversed = From.Deposit(Amount);
if (!Reversed)
{
To.Deposit(Amount);
return(this);
}
return(this);
}
