Comments on: JOnAS Showcase : having the best of Java EE and OSGi http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/ akquinet blog Wed, 08 Feb 2012 04:21:43 +0000 hourly 1 http://wordpress.com/ By: Informasi Online Perkumpulan Orang Jawa Kelahiran di Sumatera http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-2237 Thu, 22 Dec 2011 21:29:41 +0000 http://blog.akquinet.de/?p=95#comment-2237 Informasi Online Perkumpulan Orang Jawa Kelahiran di Sumatera…

[...]JOnAS Showcase : having the best of Java EE and OSGi « akquinet-blog[...]…

]]> By: ajinkya http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-770 Sun, 10 Oct 2010 18:27:55 +0000 http://blog.akquinet.de/?p=95#comment-770 Hi
I am new to JOnAS and the concept related to bundles
injecting bundles and all other details.
could u please help me in how to deploy a simple application in JOnAS with all these features.
also any books available for this….
I am very happy to see ur example. and its wonderfully written thanks

]]> By: Audrey Bruno http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-512 Sun, 23 May 2010 14:05:27 +0000 http://blog.akquinet.de/?p=95#comment-512 Nice! great share,great article,very usefull for me,thank you. :-D

]]> By: Towards SOA-based Mobile Solutions « akquinet-blog http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-23 Fri, 28 Aug 2009 15:38:20 +0000 http://blog.akquinet.de/?p=95#comment-23 [...] JOnAS Showcase : having the best of Java EE and OSGi [...]

]]> By: Guillaume http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-22 Fri, 28 Aug 2009 08:57:54 +0000 http://blog.akquinet.de/?p=95#comment-22 @Sahoo: I agree this is a nice article and I’m glad to see what we’ve done so far in JOnAS involved in a more complex scenario than our samples :)

Now your questions:

#1. The BundleContext that can be injected in an EJB is either the BundleContext of the EjbJar itself (if it is also a Bundle – just like the Glassfish WAB) or the BundleContext of the EasyBeans’ Bundle (if the EjbJar is not a bundle).
Currently, the container do not change the type of the archive (ejb/bundle): it’s the user who choose to provide an EjbJar with bundle metadata. So no special bundle (a part the EjbJar bundle itself).

#2. In the ear case, we’re dealing with a standard Java EE modules (no bundles involved, so no OSGi classloading rules here, even if inner EjbJars have OSGi metadata in their manifests). So, in order to let theses non OSGi archives access some required libraries (ORB for example), we choosed to have a special parent class loader with a “DynamicImport-Package *” (see http://jonas.ow2.org/JONAS_5_1_0/doc/doc-en/html/j2eeprogrammerguide.html#j2ee.pg.classloader for detailed explanation and schema). So the EAR classes can access all exported packages of the system (user’s bundles included).

Hope it answers your questions.
–Guillaume

]]> By: Sahoo http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-21 Thu, 27 Aug 2009 14:03:27 +0000 http://blog.akquinet.de/?p=95#comment-21 Very nice article. Glad to see OSGi/Java EE integration efforts in various applications servers (e.g., http://weblogs.java.net/blog/ss141213/archive/2009/06/developing_hybr.html) and it shall definitely help Java EE community.

A few questions:

1. When a bundle context is injected into an EJB, which bundle does the bundle context correspond to? Is it the context of EasyBean bundle or a special bundle created for the EJBs?

2. How does the EJB inside the EAR accesses the interface classes packaged in some other OSGi bundle?

Thanks,
Sahoo

]]> By: blog09ats http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-20 Wed, 26 Aug 2009 06:26:07 +0000 http://blog.akquinet.de/?p=95#comment-20 Miroslav, I totally agree.
JOnAS provides Apache CXF (Web Service…), and has very interesting and powerful clustering features. Moreover, we already successfully use DOSGi in JOnAS. OBR is also supported in the deployment agent, but does not yet resolved the dependencies (so, yes, it’s quite limited right now, but the JOnAS team is working hard to fix that).
Something to notice too is the effort of the JOnAS team to provide “standard” OSGi services. Right now, all the Java EE technical service are exposed as OSGi services but use JOnAS interfaces. They start to also exposes OSGi service (HTTP service, Transaction …)

]]> By: Miroslav Nachev http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-19 Wed, 26 Aug 2009 04:38:02 +0000 http://blog.akquinet.de/?p=95#comment-19 I would like to share my experience and to inform you that this features will dramatically change the Java EE world. Similar functionality is implemented in GlassFish v3 also.
The other very interesting Enterprise OSGi technologies which are very important are Distributed OSGi and OSGi Bundle Repository (OBR). Both technologies using together with Java Web Start (JWS; JNLP) offers very good Rich Internet Application Client (RIA Client).

]]> By: Extenze http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-15 Tue, 18 Aug 2009 21:10:30 +0000 http://blog.akquinet.de/?p=95#comment-15 You made some good points there. I did a search on the topic and found most people will agree with your blog.

]]> By: Mixing JavaEE and OSGi with JOnAS « The OSGi Look http://blog.akquinet.de/2009/07/27/jonas-showcase-having-the-best-of-jee-and-osgi/#comment-9 Wed, 29 Jul 2009 12:50:15 +0000 http://blog.akquinet.de/?p=95#comment-9 [...] Check the complete post on the akquinet blog. [...]

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