《《E++ A pattern language for J2EE applications》.pdf

E++: A pattern language for J2EE applications Bin Yang 2001 David Klimek david.klimek@seznam.cz 9.december 2001 E++: Pattern language for J2EE applications 1 Motivation Question: How to develop good J2EE aplications cheap and quickly? Answer: Reuse not only implementation but also application architecture E++: Pattern language for J2EE applications 2 Overview Patterns, pattern language E++ E++ architecture patterns E++ design patterns Conclusion E++: Pattern language for J2EE applications 3 What is good software? Modularity Reusability Extensibility Portability Inversion of control Consistence Scalability E++: Pattern language for J2EE applications 4 What is pattern? They ’re observed through experience Are typically written in a structure Prevent reinventing the wheel Exist at different levels of abstraction Undergo continuous improvement Are reusable artifacts Communicate designs and best practices Can be used together to solve a larger problem E++: Pattern language for J2EE applications 5 Pattern template Pattern name Context Problem Forces Solution (Consequences) (Related Patterns) E++: Pattern language for J2EE applications 6 Categorizing Patterns Design patterns Architectural patterns Analysis patterns Creational patterns Structural patterns Behavioral patterns E++: Pattern language for J2EE applications