Esempi in C++ (Cpp) per Originator::RestoreToMemento

Esempio n. 1

File: Memento_exam.cpp Progetto: greenpea1121/DesignPatternExample

int main(int argc, char* argv[])
{
	Originator* o = new Originator();
	o->SetState("old"); //±¸Íüǰ״̬
	o->PrintState();//ÏÔʾµ±Ç°Öµ	
	Memento* m1 = o->CreateMemento(); //½«µ±Ç°×´Ì¬±¸Íü
	cout<<endl;

	o->SetState("newA"); //ÐÞ¸Ä״̬
	o->PrintState();
	cout<<endl;

	o->SetState("newB"); //ÐÞ¸Ä״̬
	o->PrintState();
	cout<<endl;

	o->SetState("newC"); //ÐÞ¸Ä״̬
	o->PrintState();
    Memento* m2 = o->CreateMemento(); //½«µ±Ç°×´Ì¬±¸Íü
	cout<<endl;

	o->RestoreToMemento(m1); //»Ö¸´ÐÞ¸Äǰ״̬
	o->PrintState();
	cout<<endl;

	o->RestoreToMemento(m2); //»Ö¸´ÐÞ¸Äǰ״̬
	o->PrintState();
//	printf("Hello World!\n");
	return 0;
}

Esempio n. 2

File: main.cpp Progetto: chenxin0123/Demos

///Memento 模式的关键就是要在不破坏封装行的前提下，捕获并保存一个类的内部 状态，这样就可以利用该保存的状态实施恢复操作。为了达到这个目标，可以在后面的实现 中看到我们采取了一定语言支持的技术。
///在 Command 模式中，Memento 模式经常被用来维护可以撤销(Undo)操作的状态
void MementoTest() {
    Originator* o = new Originator();
    o->SetState("old"); //备忘前状态
    o->PrintState();
    Memento* m = o->CreateMemento();//将状态备忘
    o->SetState("new"); //修改状态
    o->PrintState();
    o->RestoreToMemento(m); //恢复修改前状态
    o->PrintState();
}

Esempio n. 3

File: main().cpp Progetto: ircc/test-code-backup

int main(int argc,char* argv[]) 
{ 
	Originator* o = new Originator();
	o->SetState("old"); //±¸Íüǰ״̬
	o->PrintState();
	Memento* m = o->CreateMemento(); //½«×´Ì¬±¸Íü
	o->SetState("new"); //ÐÞ¸Ä״̬
	o->PrintState();
	o->RestoreToMemento(m); //»Ö¸´ÐÞ¸Äǰ״̬
	o->PrintState();
	return 0;
}

Esempio n. 4

File: test.cpp Progetto: lvpingjie/design_pattern

void test_memento()
{
	Originator* o = new Originator;
	o->SetState("old");
	o->PrintState();

	Memento* m = o->CreateMemento();  //备忘当前状态

	o->SetState("new");
	o->PrintState();

	o->RestoreToMemento(m);  //恢复状态
	o->PrintState();

	delete o;
}