OK. I have an idea how I could make it run in Eclipse RCP environment, just need little your (devs) guidance. I have read the other thread about integration to OSGi, my goal is somewhat smaller:
As I understand, OpenEJB does two things: 1. Scans classpath trying identify all the resources to be analysed (classes, archives, ...) 2. Analyses each found resource whether it is an EJB component (possibly JPA entity too, though this could be Hibernate's job) 3. Loads identified resources by classloader.loadClass() or similar Since we have problem with step 1, steps 2&3 do not start (obviously). In my scenario I do not need step 1, I could start with step 2 providing exact class names (e.g. com.mycompany.MySessionBean) that are EJB components. Step 3 should succeed since I'm using Eclipse-BuddyPolicy (or I could even place the classes to the same bundle as OpenEJB itself). So my question is: is it possible, and in what source place should I look for, to skip the classpath scan and to just provide my list of class names? Thanks for your patience, Donatas -----Original Message----- From: Daniel S. Haischt [mailto:[email protected]] Sent: Monday, January 26, 2009 4:40 PM To: [email protected] Subject: Re: Using OpenEJB in Eclipse RCP application We can't simply copy & paste code from Hibernate cause it's a LGPLed project. 2009/1/26 Donatas Ciuksys <[email protected]>: > Hi Oliver, > > Thanks for straight answer. That will save my efforts to run it. > > Just for discussion: > > Hibernate (EntityManager) runs in OSGi, so it must have some bundle:// > protocol handling functionality, and it is open-source. Since the problem is > the same (classpath scanning), is it possible/feasible to try to find this > functionality, and to plug it into OpenEJB? > > Regards, > Donatas > > -----Original Message----- > From: Oliver Günther [mailto:[email protected]] > Sent: Monday, January 26, 2009 2:29 PM > To: [email protected] > Subject: Re: Using OpenEJB in Eclipse RCP application > > Hi, > > to make something long very short. OpenEJB does not run in an OSGi > environment (e.g. Eclipse RCP), neither local nor remote. > > The little bit longer one. > OpenEJB makes heavy usage of the of Resource (JAR) finding through the > Classloader. > Eclipse (OSGi) uses different Classloaders, which do not support the > classic way of Resource finding. > The NullPointerException is caused by the OpenEJB, by getting an OSGI > Resource String > (e.g. Expects something like /home/OpenEJB/xxx.jar, gets : > bundle://42:22/ ) > > You can overcome this by setting a special OpenEJB option, which > disables the classpath inspection. > But then you get completely stuck, if you try to let openejb start you > EJBs, because it uses the same algorithm to find them. > > There is an ongoing thread about the OSGi integration, but the team > seams to have other priorities, so don't expect it to run > anytime soon. > > PS: Don't try to get it to run in remote mode. The OpenEJB client has > also some classloading issues, which will not work in Eclipse. > > - > Olli > > >
