jsug - as3 vs java by christoph pickl

AS3 vs JavaChristoph Pickl

1Thursday, March 5, 2009

Getting used to Flex/ActionScript from a Java developer's perspective

www.jsug.at www.alpenflash.at2Thursday, March 5, 2009

Agenda1. Languages

2. Development

3. Design Patterns

4. Miscellaneous

3Thursday, March 5, 2009

About Myself

TU Wien Student

Former Java Developer

Flash since Version 5

Co-Founder of jsug.at

DJ/Turntablist

http://web.student.tuwien.ac.at/~e0525580

4Thursday, March 5, 2009

Discussions during presentation are welcome

5Thursday, March 5, 2009

LanguagesActionScript 3 compared to Java

6Thursday, March 5, 2009

The limits of my language are the limits of my world.

Ludwig Wittgenstein

7Thursday, March 5, 2009

Advantages of AS3

Common Syntax

Function Type

Metaprogramming

Type Hinting (~static)

Built-in Language (e4x)

Mandatory override

+

8Thursday, March 5, 2009

Disadvantages of AS3

Lack of OOP Features

No abstract classes

No private constructors

Dynamic Classloading

Strings instead Enums

Runtime Errors

−Many things are coming soon...

9Thursday, March 5, 2009

DevelopmentFlex Builder vs Java perspectives

10Thursday, March 5, 2009

Advantages

Fully integrated in Eclipse environment

Low Barrier of Entry

Use yet existing Power

Common Perspectives(Sync, Debug, ...)

Switching Languages

+

11Thursday, March 5, 2009

Disadvantages

Reorganize Imports

Slow Auto Completion

Code Templates

Incremental Compilation

Maven Plugin(s)

Not open source

Submitting patches?

−

12Thursday, March 5, 2009

Design PatternsReuse solutions for common problems

13Thursday, March 5, 2009

Patterns are great for forming a design vocabulary.

Bill Scott

14Thursday, March 5, 2009

Singleton in Javapackage at.jsug.as3vsjava;

public class Single {

private static final Single INSTANCE = new Single(); private Single() {} public static Single getInstance() { return INSTANCE; }}

// final Single single = Single.getInstance();

15Thursday, March 5, 2009

Singleton in AS3package at.jsug.as3vsjava {

public class Single { private static var INSTANCE: Single; public function Single(enforcer: SingletonEnforcer) { } public static function get instance(): Single { if(INSTANCE == null) { INSTANCE = new Single(new SingletonEnforcer()); } return INSTANCE; }}}class SingletonEnforcer { }

// const single: Single = Single.instance;

16Thursday, March 5, 2009

Design Patterns Book

Features of AS 3.0

OOP Concepts

12 Sample Patterns

Creational

Structural

Behavioral

www.as3dp.com17Thursday, March 5, 2009

RIA Patterns

http://www.uxmatters.com/mt/archives/2007/03/conference-review-uie-web-app-summit-2007-part-ii.php

18Thursday, March 5, 2009

MiscellaneousStuff that didn’t fit (in other chapters)

19Thursday, March 5, 2009

Frameworks?!

Apache Stuff

Logging, Collections, ...

IoC-Container

Spring ActionScript

Maven

Unit Testing

OR-Mapper

20Thursday, March 5, 2009

We don’t like proprietary stuff!

If it’s not opensource,please keep it away from us!

21Thursday, March 5, 2009

ConclusioSun guys are engineers

Adobe guys are designers

Bring’em together

22Thursday, March 5, 2009

Any Questions?

christoph.pickl@student.tuwien.ac.at23Thursday, March 5, 2009