Roles

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• ObjectFactory A concrete class that maintains a list of objects that support the Prototype interface. This class instructs these objects to clone themselves and returns references to the clones to the requesting client.
• Prototype The interface that defines a method for cloning instances of classes that implement this interface. This interface can be a hybrid, meaning that it not only defines the cloning method, but it defines other operations as well.
• ConcretePrototype A concrete class that implements the Prototype interface. When the Clone method of the Prototype interface is invoked, an instance of this class will create a copy of itself and a reference to the copy will be returned to the calling program.