PPT-Decorator

COMP 401 Spring 2014 Lecture 15 10 14 2014 Multiple Observer Lists Same delegation trick can be used to support multiple lists of observers Useful if you want to support more than one type of observable changesevents. Decorators provide a flexible alternativ e to subclassing for extending functionality Toni Sellars Universitat de Girona Welcome to Starbuzz Coffee Because Starbuzz Coffee have grown so quickly they are scrambling to update their ordering system to Pattern. flyweight Pattern. Matt Klein. Decorator Pattern. Intent. Attach Additional responsibilities to an object by dynamically. Decorators provide a flexible alternative to subclassing for extending functionality.. Yoshi. Why decorator?. Once you know the techniques of decorating, you’ll be able to give your (or someone else’s) objects new responsibilities . without making any code changes to the underlying classes.. . Structural Design Patterns. Software Engineering 2011. Department of Computer Science Ben-Gurion university. Based on slides of: . . Mira Balaban Department of Computer Science Ben-Gurion university. Implementing Decorators. CSC 313 – Advanced Programming Topics. Decorator Pattern Intent. Invisibly. . augment main concept instances. Turn . coffee. into a . double mocha with whip. Make . $2. sandwich . Phillip Shin. Overview. Problem. Solution. Example. Key points. Problem. Want to add responsibilities to individual objects, not entire class. Inheritance is inflexible. Would have to create class for every different combination of functionality. -Structural Patterns. WATTANAPONG. . SUTTAPAK. Software Engineering, . School of Information Communication Technology,. University of . PHAYAO. 1. จุดประสงค์การเรียนรู้. JavaScript.  . is . a . high-level,.  . dynamic,.  . untyped. , . and . interpreted.  programming language. .. JavaScript was originally developed . in . May 1995 . by. . Brendan . Eich. .. S. Yoshi. Why decorator?. Once you know the techniques of decorating, you’ll be able to give your (or someone else’s) objects new responsibilities . without making any code changes to the underlying classes.. Interfaces and Encapsulation, Continued. Kirk Scott. Corbel. From Wikipedia, the free . encyclopedia. Jump to: . navigation. , . search. . For other uses, see . Corbel (disambiguation. ). .. In . architecture. a . high-level,.  . dynamic,.  . untyped. , . and . interpreted.  programming language. .. JavaScript was originally developed . in . May 1995 . by. . Brendan . Eich. .. S. tandardized . version . Pattern Overview. The Decorator pattern provides a flexible alternative to . subclassing. by attaching additional responsibilities to an object dynamically, by using an instance of a subclass of the original class that delegates operations to the original . CSCI577A Fall2015. Kan. Qi, Bo Wang. Goals of This Lecture. In this lecture, we will cover:. Terminology: Architecture, Styles, Patterns, etc.. Basic Examples: . typical design . patterns and . architectural .