/// <summary>
/// Define an object that encapsula teshow a set o f objects interac t.Mediat or promotes
///loose coupling by keeping objects from referring to each other explicitly, and it
///lets you vary their interaction independently.
/// </summary>
void Caller()
{
DocumentsCoordinator mediator = new DocumentsCoordinator(new HashSet <BaseDocument>()
{
new DocumentA(), new DocumentB()
});
BaseDocument doc = new DocumentA();
doc.SendCoordinationAction();
}
void Caller()
{
BaseDocument doc = new DocumentA();
BaseDocument decor = new DocumentDecoratorForLogging()
{
doc = doc
};
decor.Create();
}
/// <summary>
/// Allow an object to alter its behavior when its internal state changes. The object
///will appear to change its class.
/// </summary>
void Caller()
{
BaseDocument doc = null;
doc = new DocumentA();
doc.State = new DocumentEditableState()
{
Document = doc
};
doc.Confirm();
}
void Caller()
{
Employee emp1 = new Bookkeeper();
Employee emp2 = new Manager();
emp1.Successor = emp2;
BaseDocument doc = new DocumentA();
emp1.ProcessDocument(doc);
}
/// <summary>
/// Define a one-to-many dependency between objects so that when one object
///changes state, all its dependents are notified and updated automatically.
/// </summary>
void Caller()
{
BaseDocument doc = null;
doc = new DocumentA()
{
Owners = new List <Employee>()
{
new Manager(), new Bookkeeper()
}
};
doc.Create();
}
void Caller()
{
IDocument doc = null;
doc = new DocumentA();
doc.Create();
doc = new DocumentB();
doc.Create();
BaseDocument document = new DocumentB();
document.Save();
}
/// <summary>
/// Without violating encapsulation, capture and externalize an object's internal state
///so that the object can be restored to this state later.
/// </summary>
void Caller()
{
BaseDocument doc = null;
doc = new DocumentA()
{
Name = "my Name"
};
MementoMamanger manager = new MementoMamanger()
{
Memento = doc.CreateMemento()
};
doc.StoreFromMemento(manager.Memento);
}
void Caller()
{
BaseDocument doc = null;
doc = new DocumentA()
{
RenderingStrategy = new RenderingStrategyTabbed()
};
doc.Render();
doc = new DocumentB()
{
RenderingStrategy = new RenderingStrategySinglePage()
};
doc.Render();
}
