In this presentation from SpringOne 2009, Rob Harrop discusses OSGi in the enterprise, OSGi basics, modularity in OSGi, import-package, require-bundle, the problem of split packages, import-bundle, Bundlor, demos of OSGi bundle usage, RFC 66, dm Server, the blueprint service, OSGi services, demo of building an OSGi-based Spring MVC web application, OSGi configuration admin, and dynamic updates.
Modularity is an important aspect of large Java systems. Build scripts and projects are often split up into modules in order to improve the build, but this is rarely taken into account at runtime. This third part of the Modular Java series discusses dynamic modularity, how a bundle's classes are resolved, how they can come and go, and how they can communicate with each other.
Modularity is an important aspect of large Java systems. Build scripts and projects are often split up into modules in order to improve the build, but this is rarely taken into account at runtime. This second part of the Modular Java series discusses static modularity, the creation of bundles, how to install them into an OSGi engine and how to set up (versioned) dependencies between bundles.
It's been a long time since the last Bundle.update was posted, and there have been a lot of OSGi-centric updates since then. OSGi 4.2 has been released, with Equinox 3.6, Felix 3.0 and Knopflerfish 3.0 all providing support for the new platform. Recently, there have been some glimpses of the next version of OSGi, as well as increased enterprise support. Read on to find out what's been happening.
Last week saw the first OSGi DevCon London, held in conjunction with JAX London in Hammersmith's Novotel. Topics included features from the upcoming OSGi Enterprise Expert Group publication, using and testing OSGi in the cloud, accessing objects through JPA on an OSGi system and how modularity can defeat complexity brought on by exponential software growth.
Since the last Bundle.update, a new milestone of NetBeans adds support for embedding OSGi bundles, and this week's London OSGi DevCon promises to be of interest. ECF 3.2 has been released, and EGit/JGit is making strong headway in the world of DVCS.
It's been a month since OSGi 4.2 was released. What's been happening in the OSGi space since then?
The OSGi Alliance has just released the OSGi 4.2 specification. Although early drafts of it have previously been available, this is the final release version. What does this release hold? InfoQ has previously covered a sneak preview, but now that the spec is final, here are the new and noteworthy items of OSGi 4.2.
Peter Kriens, technical director of the OSGi alliance, gave a presentation on the upcoming OSGi 4.2 release at the UK OSGi Users Group. The event was recorded, and the video is now available. OSGi 4.2 is expected to be released to the public by the end of August 2009 and includes a number of new features.
