Probably the simplest Ajax effect that I can think of that is desirable to add to web applications is to cause login boxes to “shake”, just like real computer login panels do, on a failed login. This is one of the few situations where a simple animation effect (too simple to qualify for Ajax, really) […]
Also tagged html, javascript, prototype, scriptaculous, webobjectsThis is more complex than it needs to be, for unobvious reasons. The problem, succinctly stated, is implementing regular expressions with Java. For historical WebObjects reasons, I have not had easy access to a regexp library. Java people have used the open source JEdit libraries to implement regular expressions, but with WebObjects this was too […]
Also tagged webobjectsThis is genuine 1960s technology, but it moves forward into 1970s technology (OOP) very well. Here’s the situation: you have a combination of two variables that need checking; for an example, perhaps an object has a status flag with a few different states, like failed, on hold, incomplete and registered – and you need to […]
Also tagged design patterns, webobjectsI am used to using the old (deprecated) WebObjects NSTimestamp class to do basic arithmetic on dates; it was easy with one method call to add an arbitrary number of days/weeks and get the correct date, or even to calculate the difference between two dates. In the new (release 5.0, so not that new) world […]
Also tagged webobjectsI saw this title in a press release from O’Reilly, and was intrigued by the description. For the last few years I have been letting myself concentrate almost entirely on WebObjects, and along the way I have acquired a few programming habits as I have matured as a programmer. This book seemed to embody them […]
Also tagged book reviewby Bruce Eckel. I have been recommending this to my students since I came across the downloadable version of the first edition, which was probably around 2000. Since then I seem to have updated to a copy of the second edition, and I see on Bruce’s web site that a third edition is now available. […]
Also tagged book review