public void Revert(Employee emp)
{
EmployeeMemento em = GetLastSavedVersion();
if (diffs.Count > 0)
{
diffs.RemoveAt(diffs.Count - 1);
}
emp.Revert(em);
}
public void Save(Employee emp)
{
EmployeeMemento memento = emp.Save();
if (initialMememento == null)
{
initialMememento = memento;
}
else
{
diffs.Add(memento.GetDiffFor(GetLastSavedVersion()));
}
}
public Caretaker()
{
diffs = new List <EmployeeMementoDiff>();
initialMememento = null;
}
public void Revert(EmployeeMemento memento)
{
Name = memento.Name;
Address = memento.Address;
}
