public static void BaseSample()
{
Originator originator = new Originator();
originator.State = "state1";
Console.WriteLine($"originator的状态 {originator.State}");
Caretaker caretaker = new Caretaker();
caretaker.Memento = originator.CreateMemento();
originator.State = "state2";
Console.WriteLine($"originator的状态 {originator.State}");
Console.WriteLine("开始通过备忘录恢复");
originator.RestoreMemento(caretaker.Memento);
Console.WriteLine($"originator的状态 {originator.State}");
Console.ReadKey();
}
static void Main(string[] args)
{
var savedStates = new List <Originator.Memento>();
var originator = new Originator();
originator.Set("State #1");
originator.Set("State #2");
savedStates.Add(originator.SaveToMemento());
originator.Set("State #3");
savedStates.Add(originator.SaveToMemento());
originator.Set("State #4");
originator.RestoreFromMemento(savedStates.Last());
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
Console.WriteLine("--------------------ObserverPattern--------------------");
Console.WriteLine();
IList <Contact> contacts = new List <Contact>
{
new Contact {
Name = "张三", MobileNumber = "13566778901"
},
new Contact {
Name = "李四", MobileNumber = "15835368686"
},
new Contact {
Name = "王五", MobileNumber = "15160266300"
}
};
var originator = new Originator("Bean", contacts);
originator.Show();
Console.WriteLine();
//创建备忘录
var manager = new MementoManager();
var memento = originator.CreateMemento();
manager.ContactMementoList.Add(originator.Name, new List <ContactMemento> {
memento
});
manager.Show();
Console.WriteLine();
//修改通讯录
Console.WriteLine("----------------移除最后一个联系人---------");
originator.Contacts.RemoveAt(2);
originator.Show();
Console.WriteLine();
//回复通讯录
Console.WriteLine("----------------回复通讯录列表-------------");
originator.RestoreMemento(memento);
originator.Show();
Console.ReadKey();
}
static void Main(string[] args)
{
Originator originator = new Originator();
CareTaker careTaker = new CareTaker();
originator.SetState("State #1");
originator.SetState("State #2");
careTaker.Add(originator.SaveStateToMemento());
originator.SetState("State #3");
careTaker.Add(originator.SaveStateToMemento());
originator.SetState("State #4");
Console.WriteLine("Current State: " + originator.GetState());
originator.GetStateFromMemento(careTaker.Get(0));
Console.WriteLine("First saved State: " + originator.GetState());
originator.GetStateFromMemento(careTaker.Get(1));
Console.WriteLine("Second saved State: " + originator.GetState());
}
/// <summary>
/// 单个撤销
/// </summary>
public static void Invoke()
{
//创建原发器对象
Originator originator = new Originator("状态1");
Console.WriteLine(originator.GetState());
//创建负责人对象
Caretaker caretaker = new Caretaker();
caretaker.SetMemento(originator.CreateMemento());
originator.SetState("状态2");
Console.WriteLine(originator.GetState());
//从负责人对象中取出备忘录对象
originator.RestoreMemento(caretaker.GetMemento());
Console.WriteLine(originator.GetState());
}
// Intent: Without violating encapsulation, capture and externalize
// an object's internal state so that the object can be restored
// to this state later.
//
// Memento存储Originator的状态
// Originator创建一个Memento，记录状态；使用Memento恢复状态
// CareTaker拥有Memento，负责存取
static void Main(string[] args)
{
var originator = new Originator {
State = "Original State"
};
Console.WriteLine(originator.State);
var caretaker = new Caretaker();
caretaker.SaveMemento(originator.CreateMemento());
originator.State = "New State";
Console.WriteLine(originator.State);
originator.RestoreFromMemento(caretaker.OriginatorMemento);
Console.WriteLine(originator.State);
}
public static void Main(string[] args)
{
#region Prototype
var originator = new Originator
{
State = "On"
};
originator.Show();
var caretaker = new Caretaker
{
Memento = originator.CreateMemento()
};
originator.State = "Off";
originator.Show();
originator.SetMemento(caretaker.Memento);
originator.Show();
Console.WriteLine();
#endregion Prototype
var lixiaoyao = new GameRole();
lixiaoyao.StateDisplay();
//保存状态
var stateCaretasker = new RoleStateCarertaker
{
Memento = lixiaoyao.SaveState()
};
// 大战 Boss
lixiaoyao.FightWithBoss();
lixiaoyao.StateDisplay();
// 快被 Boss 打挂了，恢复之前的状态，继续打
lixiaoyao.RecoveryState(stateCaretasker.Memento);
lixiaoyao.StateDisplay();
Console.ReadLine();
}
public static void Main(string[] args)
{
Caretaker caretaker = new Caretaker();
Originator org = new Originator("Memento Pattern", "Gruppe 0", "This is just a test", DateTime.UtcNow);
org.PrintState();
caretaker.Save(org.SaveToMemento());
Thread.Sleep(3000);
org.Description = "The pattern can be used for many things like this.";
org.Author = "Gruppe 25";
caretaker.Save(org.SaveToMemento());
org.PrintState();
Thread.Sleep(2000);
org.Description = "The pattern can be used for many thi...";
org.Author = "Gruppe 26";
org.PrintState();
caretaker.Save(org.SaveToMemento());
Thread.Sleep(1000);
org.Description = "The pattern can be used for am back to ear....";
org.PrintState();
Thread.Sleep(1000);
Console.WriteLine("\n\nRolling back two changes -> result:\n ");
org.RestoreFromMemento(caretaker.Restore(1));
org.PrintState();
}
static void Main(string[] args)
{
Originator originator = new Originator();
originator.State = "OK";
originator.Show();
Caretaker caretaker = new Caretaker();
caretaker.Memento = originator.CreateMemento();
originator.State = "NOT OK";
originator.Show();
originator.SetMmemnto(caretaker.Memento);
originator.Show();
Console.ReadKey();
}
/// <summary>
/// 多次撤销
/// </summary>
public static void Invokes()
{
Console.WriteLine("=====================多次撤销====================");
//创建原发器对象
Originator originator = new Originator("状态1");
Play(originator);
originator.SetState("状态2");
Play(originator);
//撤销状态2
Console.WriteLine("=====================准备撤销====================");
Undo(originator, Index);
//取消撤销
Console.WriteLine("=====================取消撤销====================");
Redo(originator, Index);
//补加状态3
Console.WriteLine("=====================新增状态====================");
originator.SetState("状态3");
Play(originator);
}
public static void Main()
{
Originator<string> originator = new Originator<string>();
originator.SetState("state0");
Caretaker<string>.SaveState(originator); // save state of the originator
originator.ShowState();
originator.SetState("state1");
Caretaker<string>.SaveState(originator); // save state of the originator
originator.ShowState();
originator.SetState("state2");
Caretaker<string>.SaveState(originator); // save state of the originator
originator.ShowState();
// restore state of the originator
Caretaker<string>.RestoreState(originator, 0);
originator.ShowState(); // shows state0
}
static void Main(string[] args)
{
Originator o = new Originator();
o.State = "On";
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
o.State = "Off";
if (!o.State.ToUpper().Equals(c.Memento.State.ToUpper()))
{
o.SetMemento(c.Memento);
}
Console.WriteLine("Originator's state = " + o.State);
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("***Memento Pattern Demo***\n");
//Originator is initialized with a state
Originator originatorObject = new Originator();
Memento mementoObject;
originatorObject.State = " Initial state ";
//Console.WriteLine("Current State : {0} ", originatorObject.State);
mementoObject = originatorObject.GetTheMemento();
//Making a new state
originatorObject.State = " Intermediary state ";
// Restore to the previous state
originatorObject.RevertToState(mementoObject);
//Console.WriteLine("Current State : {0} ", originatorObject.State);
// Wait for user's input
Console.ReadKey();
}
static void Main(string[] args)
{
Originator o = new Originator();
o.State = "On"; // 初始化状态
o.Show();
Caretaker c = new Caretaker();
c.Memento = o.CreateMemento();
// 修改状态
o.State = "Off";
o.Show();
// 恢复状态
o.SetMemento(c.Memento);
o.Show();
Console.Read();
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
Customer customer = new Customer {
FirstName = "John", LastName = "Smith"
};
Originator originator = new Originator(customer);
Caretaker caretaker = new Caretaker(originator);
caretaker.Backup();
customer.FirstName = "Bob";
caretaker.Backup();
customer.FirstName = "Jerzy";
caretaker.ShowHistory();
Console.WriteLine(customer);
caretaker.Undo();
Console.WriteLine(customer);
caretaker.Undo();
Console.WriteLine(customer);
Console.WriteLine(customer);
customer.BeginEdit();
customer.FirstName = "Bob";
Console.WriteLine(customer);
customer.CancelEdit();
Console.WriteLine(customer);
}
public static void Main(string[] args)
{
Originator originator = new Originator();
CareTaker caretaker = new CareTaker();
originator.setState("State #1");
originator.setState("State #2");
caretaker.Add(originator.saveStateToMemento());
originator.setState("State #3");
caretaker.Add(originator.saveStateToMemento());
originator.setState("State #4");
Console.WriteLine(String.Format("Current state: {0}", originator.getState()));
originator.getStateFromMemento(caretaker.Get(0));
Console.WriteLine(String.Format("First saved state: {0}", originator.getState()));
originator.getStateFromMemento(caretaker.Get(1));
Console.WriteLine(String.Format("Second saved state: {0}", originator.getState()));
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("***Memento Pattern QAs***");
Console.WriteLine("***Demonstration-Caretaker is using multiple restore points * **\n");
//Originator is initialized with a state
Originator originatorObject = new Originator();
Memento mementoObject;
IList <Memento> savedStates = new List <Memento>();
Console.WriteLine("A new set of verification");
//State-1
originatorObject.State = "State-1";
savedStates.Add(originatorObject.GetTheMemento());
//State-2
originatorObject.State = "State-2";
savedStates.Add(originatorObject.GetTheMemento());
//State-3
originatorObject.State = "State-3";
savedStates.Add(originatorObject.GetTheMemento());
//State-4 which is not saved
originatorObject.State = "State-4";
//Available restore points
Console.WriteLine("Currently available restore points are :");
foreach (Memento m in savedStates)
{
Console.WriteLine(m.State);
}
//Roll back starts...
Console.WriteLine("Started restoring process...");
for (int i = savedStates.Count; i > 0; i--)
{
mementoObject = originatorObject.GetTheMemento();
mementoObject.State = savedStates[i - 1].State;
originatorObject.RevertToState(mementoObject);
}
// Wait for user
Console.ReadKey();
}
static void Main(string[] args)
{
Originator originator = new Originator()
{
Status = "张三",
OtherStatus = "你好"
};
Caretaker caretaker = new Caretaker()
{
Memento = originator.CreateMemento()
};
// 修改
originator.Status = "李四";
Console.WriteLine($"修改后的值：{originator.Status}");
// 撤销
originator.RecoveryMemento(caretaker.Memento);
Console.WriteLine($"赋值错误，修复中...");
Console.WriteLine($"撤销已完成：{originator.Status}");
Console.ReadKey();
}
static void Main(string[] args)
{
IList <Originator.Memento> savedStates = new List <Originator.Memento>();
Originator originator = new Originator("A", "B");
originator.saveMemento();
savedStates.Add(originator.getMemento());
originator.setStr("C", "D");
originator.saveMemento();
savedStates.Add(originator.getMemento());
originator.setStr("E", "F");
originator.saveMemento();
savedStates.Add(originator.getMemento());
foreach (Originator.Memento mem in savedStates)
{
Console.WriteLine(mem.getStr1() + " " + mem.getStr2());
}
Console.ReadKey();
}
internal Memento(Originator originator)
{
state = originator.GetState();
}
public Caretaker(Originator originator)
{
this._originator = originator;
}
static void Main(string[] args)
{
Console.WriteLine("***Memento Pattern Demonstration-1.***\n");
//Originator is initialized.The constructor will create a born state.
originatorObject = new Originator();
////For Q&A session only(Shouldn't be used)
//currentMemento = new Memento();
//currentMemento.State = "Arbitrary state set by caretaker";
IList <Memento> savedStates = new List <Memento>();
/*
* Adding a memento the list.This memento stores
* the current state of the Origintor.
*/
savedStates.Add(originatorObject.CurrentMemento());
//Snapshot #1.
originatorObject.State = "Snapshot #1";
//Adding this memento as a restore point
savedStates.Add(originatorObject.CurrentMemento());
//Snapshot #2.
originatorObject.State = "Snapshot #2";
//Adding this memento as a restore point
savedStates.Add(originatorObject.CurrentMemento());
//Snapshot #3.
originatorObject.State = "Snapshot #3";
//Adding this memento as a restore point
savedStates.Add(originatorObject.CurrentMemento());
//Snapshot #4. It is not added as a restore point.
originatorObject.State = "Snapshot #4";
//Available restore points
Console.WriteLine("\nCurrently available restore points are :");
foreach (Memento m in savedStates)
{
Console.WriteLine(m.State);
}
////Directly going back to Snapshot #2
//currentMemento = savedStates[2];
//originatorObject.RestoreMemento(currentMemento);
//Undo's
//Roll back starts...
Console.WriteLine("\nPerforming undo's now.");
for (int i = savedStates.Count; i > 0; i--)
{
//Get a restore point
currentMemento = savedStates[i - 1];
originatorObject.RestoreMemento(currentMemento);
}
//Redo's
Console.WriteLine("\nPerforming redo's now.");
for (int i = 1; i < savedStates.Count; i++)
{
currentMemento = savedStates[i];
originatorObject.RestoreMemento(currentMemento);
}
// Wait for user
Console.ReadKey();
}
//restore state of the originator
public static void RestoreState(Originator <T> orig, int stateNumber)
{
orig.SetMemento(mementoList[stateNumber]);
}
//save state of the originator
public static void SaveState(Originator <T> orig)
{
mementoList.Add(orig.CreateMemento());
}
