Decorator
The decorator pattern are often wont to extend (decorate) the practicality of a particular object statically, or in some cases at run-time, severally of different instances of an equivalent category, provided some groundwork is finished at style time. this can be achieved by planning a brand new decorator category that wraps the first category. This wrapping can be achieved by the subsequent sequence of steps: Subclass the first "Component" category into a "Decorator" category (see UML diagram); In the Decorator category, add a element pointer as a field; Pass a element to the Decorator builder to initialize the element pointer; In the Decorator category, direct all "Component" ways to the "Component" pointer; and In the ConcreteDecorator category, override any element method(s) whose behavior has to be changed.
Recent Comments