More to the point, I've found that Java does everything that I need, so I haven't looked beyond these borders for a very long time. Ignorance is bliss. I know some languages are more dynamic, and possibly more productive in spurts, but in the end, it seems like Java will always win. It's got tens of thousands of frameworks to do anything from running systems for nuclear reactors to programming an embedded controller on a power toenail clipper. Many of the best frameworks are even free. I can always find a Java developer to do what I need. I know that people have made it work to solve massive problems. And I know that my customers will feel safe and secure. In short, the community and breadth of Java have always trumped anything that the alternatives have to offer. So I quit looking. And I'm glad that I did, because it allowed me to focus on building a consulting business and satisfying my customers instead of doing exhausting research for every new problem.
When a dominant language or technology is in its prime, there's a blissful ignorance stage, when ignoring alternatives works in your favor. Figure 1-1 shows what I mean. When a new language arrives with the power and dominance of a Java or C++, you can afford to ignore alternatives for a while. But if you don't accurately identify the end of the cycle, you can get steam rolled. Suddenly, your competition has the jump on you, with much better productivity leading to better quality, improved productivity, and more customers. When you enter the transition time, you'd better start paying attention.
I admit unashamedly that I liked having my head in the sand. It was easy, and productive, and politically safe. I bet that many of you Java developers act like me. You may have your own reasons. Living in this shelter is certainly easier doing nothing trumps extra work. You might feel safer no one ever got fired for choosing IBM. (OK, so maybe Component Broker on
Figure 1-1. For a period of time, ignorance is productive, but the ending of that period can be unpredictable
OS/2 was not such a good idea....) You may have an incredible investment in skills that you believe will not commute, and if you've invested poorly in your skill set, you may be right. You may be bound like a Siamese twin to Java by a long-term project or a group based on the language. Like my reasons, many of these are sound.
Shaken to the Core
After living in blissful ignorance for five years or more, I had an experience that shook me to the core. I led a new start-up down a path that required what I'd consider three of the most productive lightweight frameworks out there for web development of persistence applications: Hibernate, Spring, and Web Work. I knew there were slightly more productive environments for this kind of thing, but they either would not scale (in terms of complexity or performance), or were not popular enough to justify the risk.
My partner and I decided to implement a small part of the application in Ruby on Rails, a highly productive web-based programming framework. We did this not to satisfy our customer, but to satisfy a little intellectual curiosity. The results astounded us:
For the rewrite, we programmed faster. Much faster. It took Justin, my lead programmer, four nights to build what it had taken four months to build in Java. We estimated that we were between 5 and 10 times more productive.
We generated one-fourth the lines of code; one-fifth if you consider configuration files.
The productivity gains held up after we moved beyond the rewrite.
The Ruby on Rails version of the application performed faster. This is probably not true of all possible use cases, but for our application, the RoR active record persistence strategy trumped Hibernate's Object Relational Mapping (ORM) , at least with minimal tuning.
The customer cared much more about productivity than being on a safe Java foundation.
As you can well imagine, this shook my world view down to the foundation. I'm now frantically trying to catch up. It seems that conditions on the river changed without my noticing. I've got to start scouting again.