Shreyas,
Thanks for answering my question with such details. It is really
appreciated. With V3 running on OSGi, I am expecting exactly such use
cases in future. I am currently working on this. I shall keep you
informed as soon as I have something for you to try out.
Thanks,
Sahoo
Shreyas Shinde wrote:
> I want to expose 2 kinds of services.
>
> 1. Infrastructure Services :- POJOs that can do logging, auditing etc
>
> 2. Business Logic Services: POJOs that would have the business logic
> written (called over JNI) based on our user input. For example: on
> user input we would need to stop this POJO or create new ones (so that
> they can be looked up by name) in runtime.
>
> The methods exposed by these POJOs would be invoked either by servlets
> or EJBs that are deployed in the application server. But these POJOs
> need to be looked up by name over JNDI.
>
> Is the OSGi service registry or the HK2 service registry available for
> look up from some EJB or servlet that is running in the app server?
>
> From what I have learned from the documentation and the samples is
> that the HK2 or OSGi bundles are more for infrastructure services or
> customizing the runtime and should not have business logic.
>
> I know I have other options like writing the business logic in EJBs
> but I wanted to know if there was a way to deploy these POJOs in the
> environment without the overhead of the EJB container.
>
> Thanks for the reply Sahoo...
>
> -Shreyas
>
> On Wed, Jun 4, 2008 at 10:51 PM, Sahoo <Sahoo_at_sun.com> wrote:
>
>> I am assuming you are using GFv3. Writing HK2 or OSGi bundle is the only
>> option. Since we don't publish any user defined services to JNDI by default,
>> you have to do that. Let me ask a few questions to you.
>> What is your use case?
>> What kind of services are you going to publish to JNDI?
>> How are you going to look them up from some other modules?
>> Why do you want to communicate using JNDI and not the HK2 service
>> registry(Habitat api) or OSGi service registry that's available when you run
>> in GFv3?
>>
>> Thanks,
>> Sahoo
>>
>> Shreyas Shinde wrote:
>>
>>> Hello,
>>>
>>> I am trying to deploy POJOs (plain java classes) into the application
>>> server so that I can access them by name over JNDI. I don't want to
>>> use the EJB or the Servlet model for this and wanted to know if there
>>> is any way I could do this.
>>>
>>> I have looked into writing service modules for HK2 and OSGi but I am
>>> not sure if it is the right approach for this.
>>>
>>> Is there a good approach for doing this?
>>>
>>> Thanks,
>>>
>>>
>>>
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