Deepak Alur

Question: Should I use Intercepting Filter or Front Controller? Short answer is: use both. Intercepting Filter and Front Controller are typically used in combination. IMO, the real question is how to separate the concerns of each in my web application. This is a common question I encounter. Sometimes, when I need to implement a request/response […]

If you are new to software patterns, you might be wondering how to use them. In any case, I would love to hear back from you on how you find patterns useful (or not) depending on your experience. Anyway, based on my experience, I see 3 broad categories of pattern usage. Building a new system […]

I hear from other developers all the time about how they feel that design patterns are over-hyped and not really useful. For example, recently I was talking to an aquaintance Bob (not his real name), who works for a hugely well-known company. We were talking about some programming stuff, and as it happens, soon wandered […]

Martin Fowler (one of my favorite authors) has put together this nice survey of various pattern catalogs that have evolved in the recent years. We collaborated with Martin when we were developing the Core J2EE Patterns book and were grateful for his comments and suggestions as he reviewed our work. We continue to work with […]