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《《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
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