C# 4 and .NET 4

Custom resource Managers ❘ 631
}
}
}
public void Commit(Enlistment enlistment)
{
parent.Commit(Value, currentTransaction);
enlistment.Done();
}
public void Rollback(Enlistment enlistment)
{
parent.Rollback(currentTransaction);
enlistment.Done();
}
public void InDoubt(Enlistment enlistment)
{
enlistment.Done();
}
The class Transactional can now be used to make non-transactional classes transactional — for
example, int and string but also more complex classes such as Student — as long as the type is
serializable:
using System;
using System.Transactions;
namespace Wrox.ProCSharp.Transactions
{
class Program
{
static void Main()
{
var intVal = new Transactional(1);
var student1 = new Transactional(new Student());
student1.Value.FirstName = "Andrew";
student1.Value.LastName = "Wilson";
Console.WriteLine("before the transaction, value: {0}",
intVal.Value);
Console.WriteLine("before the transaction, student: {0}",
student1.Value);
using (var scope = new TransactionScope())
{
intVal.Value = 2;
Console.WriteLine("inside transaction, value: {0}", intVal.Value);
student1.Value.FirstName = "Ten";
student1.Value.LastName = "SixtyNine";
}
}
}
if (!Utilities.AbortTx())
scope.Complete();
}
Console.WriteLine("outside of transaction, value: {0}",
intVal.Value);
Console.WriteLine("outside of transaction, student: {0}",
student1.Value);
code snippet CustomResource/Program.cs
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