Martin, Brett, I went ahead and created a Jira for this. Lets discuss there. On Wed 15 Aug 2012 07:30:51 PM CDT, Brett Meyer wrote: > > Martin makes good points. I'd highly recommend moving this into JIRA. > As frequently as Hibernate gets used within OSGi contexts, following > some basic guidelines would be incredibly helpful. > > +1 for enforcing package splits, as well as ensuring the manifests are > generated correctly/automatically for ALL jars. Having to rely on other > communities (Apache ServiceMix, etc.) to produce wrapper-bundles is > obnoxious and inconsistent. It'd be awesome if all Hibernate projects > supported it natively and tested the heck out of it. Automated tests > with Karaf or another OSGi runtime would be great. > > Technically, OSGi bundles can get away with exporting the same package, > but dependent manifests must use "require-bundle" and the symbolic name > (rather than "import-package"). However, it's definitely best practice > to avoid "require-bundle" as much as possible. "import-package" reduces > unforeseen symptoms in the dependency tree. > > Brett E. Meyer > (the new guy on Hibernate...) > > > > On 08/15/2012 06:12 PM, Steve Ebersole wrote: >> >> Brett, maybe you could help comment on this overall? >> >> >> -------- Original Message -------- >> Subject: [hibernate-dev] OSGI manifests for hibernate-orm >> Date: Thu, 16 Aug 2012 00:08:39 +0200 >> From: mailing(a)bibbernet.org <mailing(a)bibbernet.org&gt; >> To: Hibernate hibernate-dev <hibernate-dev(a)lists.jboss.org&gt; >> >> >> >> Hello, >> >> because I need clean OSGI bundles for Hibernate and especially >> Envers, I >> am working on some patches for the 4.1 branch of hibernate-orm to >> enable >> generation of OSGI compatible jar files. >> >> During the work I have found the following problems, and need some help >> and/or feedback. The problems are: >> >> - The package org.hibernate.engine.spi is exported by two jar files, >> hibernate-core and hibernate-entitymanager, which is not possible in >> OSGI. The Problem is the STYLES map in CascadeStyle in hibernate-core >> which prevent that the package in hibernate-entitymanager can be >> refactored from org.hibernate.engine.spi to >> org.hibernate.ejb.engine.spi, to solve the duplicate export. >> I think to fix this problem, the following steps should be done: >> - Add a setter method to CascadeStyle to allow subclasses to add >> CascadeStyles to the map STYLES >> - Refactor the package org.hibernate.engine.spi in hibernate-envers to >> org.hibernate.ejb.engine.spi >> - Use the setter method to add the new CascadeStyle in EJB3CascadeStyle >> >> - The package org.hibernate.tool.ant is exported by to jars, >> hibernate-tools (version: 3.2.0.ga) and hibernate-envers, which is also >> a duplicate export problem. The problem is that HibernateToolTask in >> hibernate-tools has no getters/setters for configurationTask and thus >> hibernate-envers is directly reading/modyifing the property >> configurationTask. I think to fix this problem, the following steps >> should be done: >> - hibernate-tools should add public getters/setters for >> configurationTask in class HibernateToolTask >> - the package org.hibernate.tool.ant in hibernate-envers should be >> refactored to org.hibernate.envers.tool.ant >> - the property configurationTask should be accessed sole thru the >> getters/setters . >> >> It would be nice if someone could check and comment my planned and >> already done changes. >> >> I have already done the CascadeStyle fix, the configurationTask fix is >> outstanding because I need to know against which version of >> hibernate-tools I should create the fix. >> >> In generally the following tasks are done until now: >> - added configuration to gradle scripts to generate the osgi manifests >> for all jar files in hibernate-orm (needs maybe some cleanup) - right >> now the build files for hibernate-core, hibernate-entitymanager and >> hibernate-envers are modified. >> - added blueprint.xml to hibernate-entitymanager to announce the >> availabillity of a javax.persistence.provider >> >> Next steps: >> - add osgi manifests to the other jars of hibernate-orm >> - write integration tests with pax exam and karaf 2.2.x >> - finish refactoring of hibernate-tools >> - add patches for other needed dependencies >> (hibernate-commons-annotations and more) >> - more testing, more integration tests >> >> Help, reviews and comments are welcome, and if someone has already done >> the work or parts, please drop me a note. >> >> Attached find a patch against the branch 4.1 of hibernate-orm. >> >> regards >> Martin Neimeier >> >> >> >> >> >> > > _______________________________________________ > hibernate-dev mailing list > hibernate-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev > -- > steve(a)hibernate.org > http://hibernate.org