TweetFollow Us on Twitter

Feb 00 Online

Volume Number: 16 (2000)
Issue Number: 2
Column Tag: MacTech Online

Developing with WebObjects

by Jeff Clites <online@mactech.com>

Last month we took a first look at WebObjects, and covered all of the sources on the net you can turn to when evaluating WebObjects-to help you decide if it is the right tool for your project and to help you convince others once you have decided. This month we'll take a more technical look, and cover sites which can assist you in learning the WebObjects framework and developing WebObjects applications.

The first place to turn, of course, is Apple's own documentation and training manuals, which are excellent. Remember, WebObjects and its underlying technologies existed at NeXT long before its acquisition by Apple, so they are quite mature. (For the record, WebObjects has been around since 1996, and was arguably the first application server on the market.) But be forewarned that there is a daunting amount of information to absorb, and the learning curve is steep. Most of the material on the WebObjects Developer Documentation site is also installed locally when you install WebObjects, but newer versions may be available on the web. (There is also a page which tracks current patches, so you can make sure that your installation is up-to-date.) Also be sure to check out the WebObjects Survival Guides, written by Theresa Ray of Tensor Information Systems, which give you concrete advice on many areas of learning and deploying WebObjects. Lastly, although not directly aimed at WebObjects, there is additional training material in the Mac OS X Server section of their developer ftp site. This material doesn't seem to be highlighted elsewhere on Apple's site, and it can help you in getting up to speed with the Cocoa (a.k.a. Yellow Box) frameworks, upon which WebObjects is built.

WebObjects 4 Developer Documentation
<http://developer.apple.com/techpubs/webobjects/webobjects.html>

WebObjects Current Patch List
<http://til.info.apple.com/techinfo.nsf/artnum/n70037?OpenDocument&webobjects>

WebObjects: WebObjects Survival Guides
<http://til.info.apple.com/techinfo.nsf/artnum/n70109?OpenDocument&webobjects>
<ftp://ftp.apple.com/Apple_Support_Area/Apple_Software_Updates/MultiCountry/Enterprise/webobjects/guides/>
<ftp://dev.apple.com/devworld/Interactive_Media_Resources/>

Mac OS X Server FTP Site
<ftp://dev.apple.com/devworld/macosxserver/>

It is unfortunate that there is not yet any comprehensive third-party documentation (probably because there is not yet a market for it), because currently you don't have the benefit of multiple approaches to explaining the same material-on many topics, Apple's documentation is the first and final word. Accordingly, it's a good thing that Apple offers training courses in WebObjects (and Cocoa in general), because they are almost essential. Check out their training web site for dates, places, and prices for these classes, some of which are provided through third parties, such as Blacksmith and Tensor Information System, who also offer training courses of their own.

Apple - WebObjects - Training
<http://www.apple.com/webobjects/schedule.html>

Blacksmith
<http://www.blacksmith.com/training/30_course.html>

Tensor Information Systems, Inc.
<http://www.tensor.com/Training/Training.html>

Don't let me give you the impression that there is no third-party WebObjects information available. To the contrary, there are some excellent resources on the web-they just tend to cover specific topics rather than being general introductions or tutorials. A great source for these is Stepwise, which hosts original articles as well as tracking current Mac OS X related news. Recent topics have included memory management, authentication, and data validation. Also, Scott Anguish has created a pair of components, SWTable and SWMailto, which simplify the process of dynamically generating tables and mailto links.

Memory Management with Cocoa/WebObjects
<http://www.stepwise.com/Articles/Technical/MemoryManagement.html>

Using Checkboxes in a WORepetition
<http://www.stepwise.com/Articles/Technical/WOF_Checkboxes.html>

Fetch limits in WebObjects applications
<http://www.stepwise.com/Articles/Technical/FetchLimit.html>

Data validation with WebObjects and EOF
<http://www.stepwise.com/Articles/Technical/WOValidation.html>

Basic Authentication with WebObjects
<http://www.stepwise.com/Articles/Technical/BasicAuthentication.html>

SWTable - WOTable Plus...
<http://www.stepwise.com/Software/SWWebExtensions/UsingSWTable.html>

SWMailto - yet another component
<http://www.stepwise.com/Software/SWWebExtensions/UsingSWMailto.html>

When the documentation stops helping and you need to ask some questions, you have two places to turn. Apple hosts a WebObjects Discussion Forum, and Omni Development hosts a WebObjects mailing list (as well as several other Mac OS X related mailing lists), which is archived on their site as well.

Apple's WebObjects Discussion Forum
<http://discuss.info.apple.com/boards/webobj.nsf/by+Topic?Openview>

The Omni Group Mailing Lists: WebObjects
<http://www.omnigroup.com/community/developer/mailinglists/webobjects/>

Of course, before you start asking questions it's good policy to check the FAQ. Unfortunately, there isn't really an official FAQ per se, but there are a couple of sites which are a close approximation. Missing Link (a.k.a. DarwinLinux) hosts a collection of tips for WebObjects, Mac OS X Server, and Darwin, and there are some real gems in here. There is also the WOSource FAQ; it's over a year out-of-date at this point but it's still quite useful.

Tips & Tricks for MOSXS, WebObjects, and Darwin!
<http://www.darwinlinux.com/cgi-bin/WebObjects/MissingLink.woa/>

WOSource FAQ
<http://www.wosource.com/faq.html>

When you are done with the learning phase and actually start building a site, there are a number of third-party commercial products which can help you add advanced features. ReportMill allows you to create PDFs dynamically, and the Client Signal Viewer from VVI-DCS allows you to graphically monitor data from WebObjects applications in real time. WAPobjecs helps you generate WAP content for viewing with mobile devices such as cell phones and PDAs. And especially interesting is Objective-Everything from TipTop Software, which lets you write Cocoa applications using Perl, Python, and Tcl, in addition to the usual Objective C, Java, and WebScript. (You can even use multiple languages within the same class, implementing some methods in one language and other in another. Quite slick!)

ReportMill Software, Inc.
<http://www.reportmill.com/>

Client Signal Viewer
<http://www.vvi.com/ClientSignal/index.html>

WebObjects gets WAPed
<http://www.maccentral.com/news/9911/17.webobjects.shtml>

TipTop Home Page
<http://www.tiptop.com/>

After you've finished developing your own site, come to ours and visit the MacTech Online web pages at <www.mactech.com/online/>.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

How to build a successful civilisation i...
GodFinger 2 grants you godlike powers, leaving you to raise a civilization of followers. In the spirit of games like Black & White, the GodFinger games will see you building bigger and better villages, developing more advanced technology and... | Read more »
How to get all the crabs in Mr Crab 2
Mr. Crab 2 may look like a cutesy platformer for kids, but if you're the kind of person who likes to complete a game 100%, you'll soon realise that it's a tougher than a crustacean's shell. [Read more] | Read more »
How to be a star in Britney Spears: Amer...
If you've ever wanted to be a star, baby, then you've probably already checked out Britney Spears: American Dream and are happily making your way up the charts. But fame doesn't come easy, and everyone needs a helping hand sometimes. So we've got... | Read more »
AppSpy is hiring a part time Staff Write...
| Read more »
How to save lives in ER Surgery Simulato...
A serious earthquake has struck a nearby town in ER Surgery Simulator - Emergency Doctor, and it’s up to you to save the victims. [Read more] | Read more »
Tips and tricks to get a high score in G...
Ketchapp Games loves the endless runner genre. And its newest game, Gravity Switch, is no exception. Gravity Switch takes a fresh approach, though, as you move a block, suspended in zero gravity, safely through a maze of shifting pillars. If the... | Read more »
Tips and tricks to get a high score in S...
Smash Fu is a high-paced tile-tapping game that requires quick reflexes and some practice. You’ll have to smash bricks with the skill of a seasoned black belt to get a high score. To raise the stakes a bit, you’ll also have to avoid tapping any... | Read more »
How to keep the ball rolling in Dropple
If you're new to the minimalist puzzler Dropple, you may find yourself struggling to make it beyond the first couple of steps before your ball falls into the endless abyss below. [Read more] | Read more »
Game Craft releases new Legend of War ti...
Set for release at the end of this month, real time strategy title Legend of War seems sure to delight with a veritable feast of sweet features to get stuck into. Developed by Game Craft, the game is due for release through both the App Store and... | Read more »
How not to die in Traffic Rider
Traffic Rider, an Out Run-esque game in which your ride a motorcycle recklessly into trffic, might not seem particularly complicated. [Read more] | Read more »

Price Scanner via MacPrices.net

Apple refurbished iMacs available for up to $...
Apple has Certified Refurbished 2015 21″ & 27″ iMacs available for up to $350 off MSRP. Apple’s one-year warranty is standard, and shipping is free. The following models are available: - 21″ 3.... Read more
Textkraft Professional Becomes A Mobile Produ...
The new update 4.1 of Textkraft Professional for the iPad comes with many new and updated features that will be particularly of interest to self-publishers of e-books. Highlights include import and... Read more
SnipNotes 2.0 – Intelligent note-taking for i...
Indie software developer Felix Lisczyk has announced the release and immediate availability of SnipNotes 2.0, the next major version of his productivity app for iOS devices and Apple Watch.... Read more
Pitch Clock – The Entrepreneur’s Wingman Laun...
Grand Rapids, Michigan based Skunk Tank has announced the release and immediate availability of Pitch Clock – The Entrepreneur’s Wingman 1.1, the company’s new business app available exclusively on... Read more
13-inch 2.9GHz Retina MacBook Pro on sale for...
B&H Photo has the 13″ 2.9GHz Retina MacBook Pro (model #MF841LL/A) on sale for $1599 including free shipping plus NY tax only. Their price is $200 off MSRP. Amazon also has the 13″ 3.9GHz Retina... Read more
Apple price trackers, updated continuously
Scan our Apple Price Trackers for the latest information on sales, bundles, and availability on systems from Apple’s authorized internet/catalog resellers. We update the trackers continuously: - 15″... Read more
Clearance 12-inch Retina MacBooks available s...
B&H Photo has dropped prices on leftover 2015 12″ Retina MacBooks with models now available starting at $999. Shipping is free, and B&H charges NY tax only: - 12″ 1.1GHz Gray Retina MacBook... Read more
Check Apple prices on any device with the iTr...
MacPrices is proud to offer readers a free iOS app (iPhones, iPads, & iPod touch) and Android app (Google Play and Amazon App Store) called iTracx, which allows you to glance at today’s lowest... Read more
New 2016 13-inch 256GB MacBook Air on sale fo...
B&H Photo has the new 13″ 1.6GHz/256GB MacBook Air (model MMGG2LL/A) on sale for $1149 including free shipping plus NY sales tax only. Their price is $50 off MSRP. Amazon has the 13″ 1.6GHz/256GB... Read more
Apple refurbished iPad Air 2s available start...
Apple has Certified Refurbished iPad Air 2 available starting at $339. Apple’s one-year warranty is included with each model, and shipping is free: - 128GB Wi-Fi iPad Air 2: $499 - 64GB Wi-Fi iPad... Read more

Jobs Board

*Apple* Nissan Service Technicians - Apple A...
Apple Automotive is one of the fastest growing dealer...and it shows. Consider making the switch to the Apple Automotive Group today! At Apple Automotive , Read more
ISCS *Apple* ID Site Support Engineer - APP...
…position, we are looking for an individual who has experience supporting customers with Apple ID issues and enjoys this area of support. This person should be Read more
Automotive Sales Consultant - Apple Ford Linc...
…you. The best candidates are smart, technologically savvy and are customer focused. Apple Ford Lincoln Apple Valley is different, because: $30,000 annual salary Read more
*Apple* Support Technician II - Worldventure...
…global, fast growing member based travel company, is currently sourcing for an Apple Support Technician II to be based in our Plano headquarters. WorldVentures is Read more
Restaurant Manager (Neighborhood Captain) - A...
…in every aspect of daily operation. WHY YOU'LL LIKE IT: You'll be the Big Apple . You'll solve problems. You'll get to show your ability to handle the stress and Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.