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Struts & Hibernate
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| | | Application Service Pattern | Application Service Pattern 2004-06-09 - By Dan Malks
Back
The application service is a POJO in our current description so that it
can be used in a web-container-only deployment just as it can be used in
an app server, with or without the use of session beans. A session bean
can be used (local or remote) to provide transactional semantics on top
of the application services, which provide a service layer over the
underlying business objects (or whatever model is used).
Hope this helps,
Dan
ashraf galal wrote:
> The application service could be either POJO as a helper or a Session
> facade.
>
>
>
>
>
>
>> From: Peter Searls <psearls@(protected)>
>> Reply-To: An interest list for Sun Java Center J2EE Pattern Catalog
>> <J2EEPATTERNS-INTEREST@(protected)>
>> To: J2EEPATTERNS-INTEREST@(protected)
>> Subject: Application Service Pattern
>> Date: Tue, 8 Jun 2004 11:37:59 -0600
>>
>> When implementing the Application Service Pattern by having the Session
>> Facade call an application service to handle the coordination of
>> business
>> objects, what type of class should the application service be? Should
>> it be
>> a POJO or a Session Bean(to make fine grained transactional control
>> easily
>> available)? Is is ok to use both, POJOs when transactional control isn't
>> required and Session Beans when it is?
>>
>> Thanks for the help.
>>
>> Pete
>>
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>
>
>
> Ashraf Galal
> (416)804-8359
>
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