EJB injection in Web Services does not work with JBoss (yet), so when you want to use an EJB from your @WebService annotated POJO you have no choice but to look it up yourself. This can get a little tricky, because each J2EE container can use its own JNDI naming convention when registering the EJB […]
Automating buildings costs money. Lots, lots of money. The return on investment (ROI) is usually very low, and it takes a long, long time (on the order of 5 to 10 years) for such an investment to pay for itself. To make matters worse, people who rent the home or apartment they live in have […]
There’s a nice little article about green energy homes over at Greenprofs.com. The author makes a nice point that home owners have many options when it comes to choosing carbon-neutral energy sources: he mentions solar, wind and even hydroelectric power. I cannot help but submit, respectfully, that this article completely misses the point. There are, […]
Back in 2005, when I was writing Java software for an embedded home automation controller, we ran into a little unforeseen problem. The embedded virtual machine we were using implemented only the Java 1.3 API, and so did not offer any logging facilities (which only Java 1.4 started having). We ended up using the logging […]
According to Eric Evans, the author of Domain-Driven Design: Tackling Complexity in the Heart of Software, one of your first goals as domain analyst is to define what he calls an Ubiquitous Language, i.e., a common vocabulary that your technical team and your business sponsor will agree on, and will use to communicate. Having such […]
I’ve read Thomas Friedman’s “Hot, Flat and Crowded”, and firmly believe this book belongs on the shelf of anyone involved in making buildings more energy-effective. Mr Friedman’s previous bestseller, “The World is Flat”, discussed the changes to our world that enabled more and more people to participate in a global economy. “Hot, Flat and Crowded” […]
Wikipedia defines polyphasic sleep as the practice of sleeping multiple times in a 24-hour period. Proponents of this practice argue that it results in a much reduced total sleep requirement, sometimes as little as two hours total sleep per day. This concept immediately caught my interest when I heard about it, as it should interest […]
Just to practice my C skills I’ve begun doing the Project Euler exercises in that language. Project 4 asks what is the largest palindromic number that can be expressed as the product of two 3-digit numbers. The answer is 906609 = 993 x 913. Just for fun I modified my program to compute the largest […]
In my professional development, I felt that I had always neglected the field of web aplication development. To correct this I’ve started a little side project with Spring MVC, a web application to help a Toastmasters club’s Vice-President Education with their duties. Between the official documentation and the Spring in Action book, I found the […]
Today I searched for a Maven plugin that would filter some of my source files before compiling them. An equivalent to the resources plugin with filtering turned on, but for Java sources, that would replace occurences of, say, ${token.name} with somevalue wherever that string occurs in the source files. I could not find such a […]