iPhone Development
and
Java Web Services 101
a Practical Tour And Demo
Matthew McCullough, Ambient Ideas, LLC

Thanks for calling to
upgrade your DSL

What operating
system do you use?

Mac OS

Is that before or
after Vista?

...umm

I’d say, about 10
years after

Ok, thanks for
confirming that sir.

Why
the iPhone?

Overtaken Blackberry
in sales

even Overtaken
Moto RAZR in sales

2,000,000 apps sold
as of Oct 21, 2008

Why
Web Services?

Web Service Languages
★Java ★Perl
★.NET ★Python
★Ruby ★C
★PHP

Independent of platform
Consumed by any type of app
•Desktop
•RIA
•Headless

Nearly EVERY app is becoming network aware

Java Web
SOAP/REST/HTTP iPhone
Services Objective C

Java Web Services

JWS Tools
•IntelliJ •NetBeans
•Native support •SOA Plugin
•Eclipse •Maven
•SOA Plugin •Axis Archetype

RESTful
vs
SOAPful

SOAP

REST
http://localhost/drawing/

Java Web Service Servers
• JAX-WS
• Axis
• JAX-RS
• JSR311, Glassfish component “Jersey”
• Java 6
• Local HTTP server
• APT, or BARE needed for SOAP

iPhone Objective C

iPhone Dev Process
Free Membership
• SDK
• Simulator
Paid Membership
• Provisioning
• Deploy to Dev Device
• Digitally Sign Apps
• App Store

iPhone Dev Tools
• Dashcode = JavaScript
•Interface Builder, NIBs
•XCode

Objective C
• No Garbage Collector
• GC only on Mac OSX Desktop
• Manual Release of Memory
•C with Objects

Objective C REST
• Minimal Parsing
• Text Based (Primarily)
•Simple HTTP request
• Changing of request types
• @GET, @POST, @PUT

iPhone REST Demo

Objective C XML
• SOAP
• Heavy Wrappers, Headers, No Libs
• Help with XML Parsing
• NSXMLParser API

iPhone
SOAP Demo

Other
dev Tools

•SOAPui
•Apache TCPMon
•TCPDump
•Firefox Poster
•Netbeans WS/REST Tester

What’s next
• Java
• Native? Sun has promised
• Flash
• Native? Adobe has pledged
• JavaFX
• Does anyone care
• Let’s get it on the desktop first (Dec 2)

Takeaways
• iPhone Dev is Challenging
• Application process painful
• Manual memory management
• Cryptic APIs
• Java Web Services are Easy
• Minimal Gotchas
• Rest vs SOAP decisions

Q&A
Email questions to:
MatthewM@AmbientIdeas.com
Slides & Source Code at:
www.AmbientIdeas.com/engineering/engineering-presentation.html