Hi Sagara, Up to now we are almost done with JPA as I created and tested some samples (Webapp/JaxRs/JasWs + JNDI+ Accessing carbon/external data sources +JPA). Everything went well when we enable the relevant class loading environments.
Need further work to find the better way to provide class file enhancement. JTA work is already started and I'm working on it. Currently carbon go with Atomikas as the default JTA implementation. IMO Atomikas seems better than Geronimo transactions considering the available resources and documentation. I will start a new thread to discuss JTA. Thanks! On Mon, May 27, 2013 at 8:49 PM, Sagara Gunathunga <[email protected]> wrote: > What is the current progress of this ? Ideally we should have start JTA > also by now. > > Thanks ! > > > On Thu, May 9, 2013 at 10:24 PM, Supun Malinga <[email protected]> wrote: > >> Hi Piyum, >> >> On Thu, May 9, 2013 at 6:29 PM, Piyum Fernando <[email protected]> wrote: >> >>> There are three major JPA implementations; >>> OpenJPA >>> Eclipcelink >>> Hibernate >>> >>> I tried all three with AS using a simple webapp and worked fine. >>> I will test them with sample JAXRS and JASWS applications too and will >>> look in to the edge cases. >>> >> >> +1 >> >>> >>> As per the small discussion we had (Sagara, SupunM and me) we were >>> thinking of using OpenJPA as the default JPA provider because, most >>> probably we will be using OpenEJB to provide EJB support in near future. >>> >> >>> >>> >>> Most importantly JPA spec comes with a concept called "Enhancements" >>> which optimize the Entity classes of the application. >>> What an enhancer does is post-process the class files of the entity >>> classes and optimize them[1]. >>> >>> JPA providers provide facilities to do it in application build time or >>> at runtime. >>> >>> In the context of J2EE containers, enhancement is supported at the >>> application deployment or at the runtime[2]. >>> >>> Are we going to support enhancements in AS? IMO we should. >>> >>> I will look in to this further and update. >>> >> >> +1, As we discussed offline please look at a reference implementation and >> see whats the possible ways to do this. There is some kind of a hood >> concept, and we need to identify how that can be achieved within carbon. >> >> thanks, >> >>> >>> >>> >>> [1] >>> http://openjpa.apache.org/builds/2.1.1/apache-openjpa/docs/ref_guide_pc_enhance.html >>> [2] >>> http://openjpa.apache.org/builds/2.1.1/apache-openjpa/docs/ref_guide_pc_enhance.html#ref_guide_pc_enhance_runtime_container >>> >>> -- >>> Piyum Fernando >>> Software Engineer >>> >>> Mobile: +94 77 22 93 880 >>> Home: +94 31 22 75 715 >>> >> >> >> >> -- >> Supun Malinga, >> >> Software Engineer, >> WSO2 Inc. >> http://wso2.com >> http://wso2.org >> email - [email protected] <[email protected]> >> mobile - 071 56 91 321 >> > > > > -- > Sagara Gunathunga > > Senior Technical Lead; WSO2, Inc.; http://wso2.com > V.P Apache Web Services; http://ws.apache.org/ > Linkedin; http://www.linkedin.com/in/ssagara > Blog ; http://ssagara.blogspot.com > > -- Piyum Fernando Software Engineer Mobile: +94 77 22 93 880 Home: +94 31 22 75 715
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