Hi,
In my opinion when talking about SOA it's not correct to use the term
"SOA framework", but it's more correct to
speak about architectural model.
Then there are different technologies and frameworks that fits that model.
SOA in it's high level definition, it's about defining a modele where
there are service consumers, service providers and
the service registry to keep service interfaces and to decouple service
consumer from service provider.
In that way OSGi address *very well* the SOA model... and somewhere i
found OSGi defined as the in jvm SOA.
For the publish/subscribe mechanism the Event Admin is the choice for
me, and in my opinion is one of the most interesting
services in the compendium. The hierarchical nature of topic is very good.
Andrea
Angelo van der Sijpt ha scritto:
Although service oriented, OSGi is not a SOA framework per se. It
depends on what you exactly define by SOA whether OSGi can be of
‘service’.
For your publish/subscribe mechanism, you could take a look at the
Wire Admin Service (Compendium 108).
Regards,
Angelo van der Sijpt
On 25/05/2009 12:36, "Felix Meschberger" <[email protected]> wrote:
Hi Raji,
rajalaxmi chandran schrieb:
> Hello Everyone,
> i am trying to extended the concepts of SOA (for mobile systems)
and I
> am using OSGi. i have had a look at declarative services and
Event Admin
> Specifications. in Event Admin Specifications, i have understood that
> only notifications happen.... and i would like to know how to trasfer
> data from the publisher to the subscriber and vice versa... where
can i
> have a clear understanding of the implementations of SOA in OSGi
along
> with some examples????
> Please help......
While I cannot really help with general SOA...
But the Event instances that are sent as notifications (as you call
them) may carry payload in the form of a Dictionary where the keys are
strings and the values may be any Object. See also Section 113.3.2,
Properties, for full information on Event properties.
Regards
Felix
>
> Thank you
> Raji
>
>
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