- Return Early, Return Often
- Use Exceptions for Exceptional Events
- Use the right exception
- Do Something with the Exception
- Translate Exceptions
- Exception Text
- Conclusion
- Basic Animations with Core Animation
- Marcus Zarra and Matt Long on Core Animation
- Introduction to Migration in Apple's Core Data
- A Look at Apple's Core Animation
- The State of Java Development on OS X
- Packaging Your Application for OS X
- Tiger vs. Leopard: Which Should You Develop For?
- Building on Apple Sync Services
- Getting in Sync with OS X
- Syncing Your Data the Cocoa Way
- Controlling Both Ends of the Communications Channel: From Cocoa to Servlets
- Cocoa: Working with XML
- Java EJB 3.0: A Hibernate Clone?
- Document Level Parameters Using Core Data: A Guide for Cocoa Developers
- Tips for J2EE Development
- The Cross-Platform Java GUI: Designing Code for More Than One Operating System
- Avoiding Java Exception Abuse
- Java Perspective: Advanced Core Data
- Java Perspective: Cocoa-Java Bridge
- Java Perspective: Core Data and the Mac OS X Developer
- Java Perspective: Key-Value Protocols, Behind the Magic of Mac OS X Development
- Java Perspective: Cocoa Subclasses and Delegates
- The Java Perspective: Cocoa's Interface Builder
- Maven: Handling Multiprojects
- Java, Maven, and Your Web Development Project
- Ant User, Let Me Introduce Maven
- Using JAAS Authentication with JBoss
- Building a Custom JBoss Login Module
- Testing Java Enterprise Applications with Cactus
- Ant: Building a Better Build File
- XDoclet: Entity Bean Relationships
- The Java Developers' Introduction to XDoclet
- An Introduction to Cactus
- Using Multiple Databases with JBoss
- JBoss Application Configuration Breakdown
- Sortable Swing JTable
- Building a Professional Swing JTable
- Creating a Custom Java Swing Tablemodel
- Adding Workflow Control to Your Java Applications
- The Mac Developer Network
- Steve Scott of Late Night Cocoa has started a new podcast targeted specifically at Macintosh Developers. One of the first episodes on this podcast is a roundtable of developers with several very well known developers starting with Daniel Jalkut, Uli Kusterer and Fraser Spiers along with myself.
- Once more unto the [Beta Cycle], dear friends, once more
- Today marks the first semi-public release of iWeb Buddy, a new application that I have been developing for the past few months. Unlike seSales or applications developed as a consultant, this development cycle has been a blur of activity.
- Apple -- You Did Me A Disservice
- Today is the day that most Mac users have been looking forward to for over a year. Ever since Steve Jobs got up on stage last August and showed us Leopard for the first time. Ever since that first peak almost all Mac users and I dare say ALL Mac developers have been looking forward to this release. Unfortunately, today is also a day that Mac developers are going to be scrambling like rats on a burning ship. This is because Apple decide to thumb their nose at us.
- Further development of Bullfrog 2 for OS X
- Things are starting to speed up on the development of Bullfrog 2 previously mentioned here. In our continuing disclosure about the development process, Jon Trainer has written a very informative article on how the actors are configured.
- Starting over is hard to do
- I mentioned before that I am working with Jon Trainer of Outer Level to write Bullfrog 2 for OS X. This development effort will be targeted at the as of yet unreleased OS X 10.5 Leopard. We also promised to blog about the development as it moved forward. Unfortunately not everything has been roses.
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Use Exceptions for Exceptional Events
In this context, I define an exceptional event as anything that is outside of the expected scope. If you are verifying the results in a text field, and the text field requires only numbers, a letter is not an exceptional result. That should be expected behavior. Wrong, but expected. In this situation, it is better to return an error code instead of throwing an exception.
If the situation is completely unrecoverable, it is proper to throw an exception. What is considered unrecoverable? It naturally depends on the situation, but in some cases, disk errors or network failures would be good places for the use of an exception.
Return codes are an excellent way to avoid the use of exceptions for expected bad behavior. If the situation has more than a true/false result, consider using static final int fields to represent the results from the method. Using them allows a method a far greater response range and allows the calling method to process the results using a switch statement instead of other less-elegant branching logic.
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