This review is about OSGi in action from Richard Hall, Karl Pauls, Stuart McCulloch, and David Savage from Manning Publications.
- 11 chapters, 548 pages, $49.99
- Covers OSGi R4.2
- Easy step-by-step learning approach
- Covers many OSGi pitfalls
- Use-case study included
- Too much material
I tried once or twice to tackle OSGi on my own, without much success.
I purchased the book in order to remedy the situation and I wasn’t disappointed: it’s a rich mine of information on OSGi and is riddled with practical tricks to address real-life situations.
Unfortunately, despite the authors claims to the contrary, OSGi is a complex technology and I don’t think many organizations are mature enough to implement it. It’s a shame but thos who do will certainly benefit from this book.
“[…] coupling (or dependency) is the degree to which each program module relies on each one of the other modules.”
In object-oriented programming, removing dependencies is done by using interface. Thus, if class A is dependent on class B, we introduce interface C, which is implemented by B. Now A depends on C (see below).
This first step in decoupling is called programming by interface. Read more…
Categories: Development, Java Add new tag, decoupling, dependecy injection, dependency, di, META-INF, osgi, service locator, serviceloader, services