thank you very much, Richard. i am trying to create a bundle, which would dynamic export packages of a specified folder. well, trying, it is obvious i still get a lot things to learn about felix.
Richard S. Hall wrote: > > If you just plan on using OSGi, then you certainly don't need to worry > too much about this stuff, but if you are planning on hacking on the > Felix framework, then yes you need to understand it... > > In reality, there is a general (but hidden) OSGi concept here that > relates to updating bundles. > > When you update a bundle, it is not really completely updated. The old > version is kept around for other bundles still depending on the old > version. The old version doesn't go away until you refresh the > framework. If you update a bundle several times in a row without > refreshing, then there will possibly be several old versions of the > bundle around for each update until you refresh. Thus, one bundle is > actually multiple versions at the same time. > > So, in the Felix framework implementation, a Bundle is the abstract > representation of an installed bundle, while an IModule is associated > with a specific revision of the bundle's JAR file. Normally, there is a > one-to-one relationship, but when you update without refreshing you > create a one-to-many relationship. Once you refresh, you are back to > one-to-one. > > -> richard > > On 10/26/09 4:29, Chiron wrote: >> hi, when i learn the implementation of Felix, i find that BundleImpl has >> a >> array field m_modules, and a method called getCurrentModule(), which >> returns >> the newest module. >> i thought module was the lower level implementation of bundle. so here i >> am >> a little confused. >> what is the real relationship between bundle and module? >> >> and where could i get more infomation about felix, like a reference, i >> really need them. >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > > -- View this message in context: http://www.nabble.com/What-is-a-module--tp26055951p26070833.html Sent from the Apache Felix - Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
