Java With a Bit of OSGi – The Book

I’m dancing. By god I’m dancing on the walls. I’m dancing on the ceiling. I’m ecstatic. I’m overjoyed. I’m really, really pleased. – An excerpt from the Foreword by Uncle Bob (aka. Robert C. Martin) My book, Java Application Architecture: Modularity Patterns With Examples Using OSGi is now available. Uncle Bob and Peter Kriens each contributed Forewords […]

OSGi Perspectives

It seems my recent post on OSGi has ruffled a few feathers. I’ve also received a few personal e-mails suggesting that I have missed the mark because OSGi is a significant component of the next generation application platform. Major vendors such as IBM are building OSGi into their products, and other leading edge vendors leverage […]

Granularity: Architecture’s Nemesis

Granularity is the extent to which a system is broken down into it’s behavioral entities. Coarse-grained entities tend to be richer in behavior than fine-grained entities. Because coarse-grained entities do more, they tend to be larger than fine-grained entities, and are easier to use. In general, a fine-grained entity is more reusable than a coarse-grained […]

OSGi: Complexity is NOT the Problem

The editors at SD Times have proclaimed that OSGi is too complex. Unfortunately, they miss the mark, and the following statement taken from the article is misleading. We believe that OSGi, rather than simplifying server application development, has actually made it more complex, and there aren’t sufficient benefits to justify the added complexity. This statement […]