Hi Boris
Am 06.07.11 13:59, schrieb Magnolia Forums (on behalf of Boris Kraft):
Hey Michael, nice to see you around here!
sorry for being mainly a lurker on your list ;-)
While I haven't read the book, it seems to be the result of a master thesis or the like. Magnolia has in the past discussed the topic but found that for us, the cost of going OSGI outweighs the benefit, especially compared with our existing module mechanism. One of the biggest perceived benefits of OSGi is the hot deploy mechanism. We don't have that in Magnolia. But we haven't seen any desire by customers to hot deploy. Besides, Magnolia's distributed architecture and module lifecycle management make it easy to install or upgrade modules without service interruption. For what its worth, I have heard that competing products that sport OSGi will be rebooted after a module installation anyways, to ensure that it really works (seems it doesn't otherwise). In other words, while the promise is there, the reality is different. Or are you mainly interested in the topic for its dependency management?
I like the general concepts of OSGi (and in particular the dynamic registration of services), but it seems to me that how OSGi is used can vary quite a bit and hence I am comparing the various projects/products. Hence I found this book recently and was just curious about it and how it might compare with Apache Sling (http://sling.apache.org/site/index.html)
I will do some more research and keep you posted in case this is of interest to you.
Best wishes Michael
Regards - Boris
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