This document discusses programming style, design patterns, libraries, and communities as they relate to software frameworks. It covers common programming conventions like camelCase and PascalCase as well as design principles like DRY (Don't Repeat Yourself), KISS (Keep It Simple, Stupid), and the SOLID principles of object-oriented design. Architectural patterns like MVC and MVP are explained along with examples. The role of libraries and framework communities is also discussed.

1. Programming Style
Design Patterns +
Library +
Community =
Framework

2. Introduction
Conceptions

3. You can not be an individualist

4. Code Style
● camelCase
getName, setName, init, ....
● PascalCase (UpperCamelCase)
GetName, SetName, Init, ....
● Hungarian Notation
bBusy, chInitial, fnFunction, ...

5. Design Patterns
Golden Rules

6. DRY
In software engineering, Don't Repeat
Yourself (DRY) or Duplication is Evil (DIE) is a
principle of software development

7. DRY (Programmers Story #1)
Hi.
I am Tom. I am writing my backend with PHP
and frontend with html5 and JS. Now I am
writing forms of my web shop. I am writing
frontend validator with js and backend
validation with php....
//Say no to Tom

8. KISS
KISS is an acronym for the design principle
"Keep it simple, Stupid!".

9. KISS (fuck logic #1)
#define true false
if(true==false){
cout<<"OK";
}else{
cout<<"NO";
}

10. KISS (fuck logic #2)
try {
return true;
} finally {
return false;
}
//Return??

11. KISS (fuck logic #3)
<?php
var_dump(NULL < -50); // TRUE
var_dump(NULL < 0); // FALSE
var_dump(FALSE < TRUE); // TRUE
var_dump(FALSE < FALSE); // FALSE

12. Design Patterns
OOP

13. SOLID
The principles when applied together intends
to make it more likely that a programmer will
create a system that is easy to maintain and
extend over time.
PS. SOLID (Single responsibility, Open-closed,
Liskov substitution, Interface segregation and
Dependency inversion) - WTF Name??

14. SRP (Single responsibility principle)
class RestaurantAndFirstShopOnTheLeft {
//Restaurant
int waiter_age;
char[] waiter_name;
float pizzaCost;
//Shop
float itemsCost;
}

15. OCP (Open/closed principle)
“software entities … should be open for
extension, but closed for modification”.
final class HashMap{...} //??
final class ArrayList{...} //??
final public getItem(...){...} //??

16. LSP (Liskov substitution principle)
“objects in a program should be replaceable
with instances of their subtypes without
altering the correctness of that program”
Object o = new ArrayList();

17. ISP (Interface segregation principle)
“many client-specific interfaces are better
than one general-purpose interface.”
class Restaurant : Building {
//...
}

18. DIP (Dependency inversion principle)
@Stateless
class Users{
@PersistenceContext
private EntityManager entityManager;
//...
}

19. Design Patterns
Application

20. MVC
Model–view–controller (MVC) is a software
architecture pattern which separates the
representation of information from the user's
interaction with it.

21. MVC Example: ZendFramework

22. MVP (First View)
Model–view–presenter (MVP) is a derivative of
the model–view–controller (MVC) software
pattern, also used mostly for building user
interfaces.

23. MVP Example - Java Server Face

24. MVP - form
<h:form>
<h:outputText value="Enter your name: " /></td>
<h:inputText value="#{StoreNameBean.personName}" />
<h:commandButton action="result" value="Say Hello" />
</h:form>

25. Library
Overview

26. Library
A collection of standard programs and
subroutines that are stored and available for
immediate use.

27. Library - Examples:
● C++ (Standard Template Library)
● OGRE
● jQuery
● Allegro
and many more...

28. Library Or Framework
But my ankle use ZendFramework
as Library...
Do you think Java Platform API is a library??

29. Community
support

30. WP7 & Google Map
Adobe - Phonegap group: https://groups.
google.com/forum/?hl=en%3Fhl%
3Den&fromgroups=#!
topic/phonegap/WVb3nvP0WVA
Google - Community:
https://plus.google.
com/110612117605767826163/posts/6J7CF2Z4
3A1

31. Google Search Engine & Dynamic
Content
GDG Dublin Group:
https://groups.google.com/forum/?
fromgroups=#!topic/gdg-dublin/KfmwVgbRY68
+ Private Messages

32. Thank you for attending
sebastian@pozoga.eu
events.pozoga.eu
LinkedIn

33. Sources
● http://www.thefreedictionary.
com/program+library
● http://en.wikibooks.org
● http://en.wikipedia.
org/wiki/Software_design_pattern
● Clean Code: A Handbook of Agile Software
Craftsmanship
● The Pragmatic Programmer: From
Journeyman to Master