ADF BC 11 - best practice question

Hi,
I think that many developers/architects working with development in the SOA area, are facing the same problem as we have. The SOA architecture promis you decoupled systems that are highly adaptable and flexible. However most systems also have user interfaces and they need
to be fast, othervise the system would not be successfull. Domain logic should only be kept in one place and there will be a need for accessing the logic from both bepl, user interfaces and f.ex other services as well. The dilemma is that we both need the decoupling that we get from web services and the
speed we get from calling f.ex java directly.
But here is more about our actual challenge :
We are building a system based on bpel 10.1.3 and adf 11g. The reason for the versions are history related. Oracle released SOA 11 g in the middle of our service development, and before we really was started with faces.
The system that must to be able to adapt data from various sources (with different structure) and we need a central place for "domain" logic that can be accessed from both bpel and ui (faces) . The adf faces forms should be independent of data sources.
Right now we are working with a model where a pojo implements a certain domain logic. The pojo can be exposed as datacontrol and webservice as well. The pojo will be using calls to adf bc application modules when it needs to operate on data or in some cases it would be entreprise service bus services.
We have made several adf faces forms that purely operates on the pojo, either through calls from the backend bean or binding to the datacontrol. That works, however i read the article from steve muench that describes that you should never instantiate
the application module with Configuration.createRootApplicationModule() from the backend bean. However since faces are not aware of the application module it will not try to instantiate it. Will this approach still potential cause us probems regarding conflitcs, performance ....
Regards,
Jan
Edited by: jsteenbe on Feb 18, 2010 11:45 AM

Hi,
the recommendation ot to use Configuration.createRootApplicationModule() is because it creates a new database connection, which is expensive. Instead you could expose the AM as a DataControl and then use the ADF binding layer to access the data control from where you access the business logic. This slimlines the approach.
However, your use case sounds so much like a candidate for services than POJO beans that I think this is the way to go to be agile enough in the future
Frank
Edited by: Frank Nimphius on Feb 18, 2010 1:38 PM

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Balmukund Lakhani
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2 from
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8 )
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http://www.windowsservercatalog.com/results.aspx?&chtext=&cstext=&csttext=&chbtext=&bCatID=1642&cpID=0&avc=10&ava=0&avq=0&OR=1&PGS=25&ready=0
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ADF BC 11 - best practice question

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