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Spring context visibility between modules [message #660981]

Tue, 22 March 2011 10:49

Eclipse User

Hi,
I am using Spring DM 1.2(Virgo) and it works great so far but i am having a design issue.

Imagine two bundles, bundleA and BundleB.

Object ConsumerA from BundleA uses an object ProducerB from BundleB.
Now ProducerB encapsulates a bean BeanC injected from the spring context via @Autowired annotation. BeanC is created with information from a property file.

Now, when ConsumerA calls ProducerB, BeanC is not in its scope. A beanNotfoundException is thrown.

I did make it work by referencing BeanC as a service in the service registry but it is not what i want in the end because it is too tight coupled.

Do you have any idea about it? Maybe to redesign how i am doing it?

For more info, my producerB is a Hibernate constraint validator. ConsumerA is JSF2 BeanValidator.

Thanks !!!

[Updated on: Tue, 22 March 2011 10:50] by Moderator

Re: Spring context visibility between modules [message #661030 is a reply to message #660981]

Tue, 22 March 2011 15:34

Eclipse User

Reply to myself, we are working on a factory. Will come back as soon as we get something conclusive.

Re: Spring context visibility between modules [message #661405 is a reply to message #660981]

Thu, 24 March 2011 10:45

Eclipse User

With SpringDM each bundle has its own individual appContext. There is no sharing of contexts between bundles.

If you need to share types, use Import-Package/Import-Bundle etc.
If you need to share "beans" - use services.

Assuming:

1. A depends on B. (i.e. A has an Import-Package: b)
2. Both A and B need to create Spring application context.

In B set-up an app context with beans ProducerB and BeanC. Inject BeanC into ProducerB. Publish ProducerB as a service.

<osgi:service internface="ProducerBInterface" ref="producerB"/>

In A, import ProducerB as a service
<osgi:reference id="producerB" interface="producerBInterface"/>
Inject "producerB" bean into ConsumerA and use it.

Regards,
Dmitry

Re: Spring context visibility between modules [message #661485 is a reply to message #661405]

Thu, 24 March 2011 17:46

Eclipse User

Edit.

Thanks i wll try that.

[Updated on: Fri, 25 March 2011 06:52] by Moderator

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