Example #1
0
        public Memento3 AddToken(int value)
        {
            var m = new Memento3(value);

            Tokens.Add(new Token(value));
            return(m);
        }
Example #2
0
        public Memento3 AddToken(Token token)
        {
            if (token != null)
            {
                var m = new Memento3(token.Value);
                Tokens.Add(token);
                return(m);
            }

            return(null);
        }
Example #3
0
        public void Revert(Memento3 m)
        {
            if (m != null)
            {
                var find = Tokens.Find(t => t.Value == m.Value);

                if (find != null)
                {
                    Tokens.Clear();

                    // revert back to memento state.
                    Tokens.Add(new Token(find.Value));
                }
            }
        }
Example #4
0
        // change to Main to run.
        public static void Main(string[] args)
        {
            var tm = new TokenMachine();

            // revert to 3
            var m = new Memento3(3);

            var token1 = new Token(2);

            tm.AddToken(token1);
            tm.AddToken(1);
            tm.AddToken(3);
            tm.AddToken(4);
            tm.AddToken(5);
            tm.AddToken(110);

            tm.Print();
            Console.WriteLine();
            tm.Revert(m);

            tm.Print();
        }