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From Joerg Heinicke <>
Subject Re: EJB + Cocoon, "Best Practices"
Date Sun, 21 Sep 2003 22:29:25 GMT
We used EJB + Cocoon 2.0.4 for our project ConWeb. We have an 
EJBConnectorAction that handles the authorization and calls a 
WorkFlowBean with the request information. This one is calling actions 
doing the business logic. It returns the workflow information in a 
HashMap, the sitemap decides on this information which generator to call 
(e.g. simple XML or FilterGenerator). The FilterGenerator knows the 
components to call in the backend, especially a prepared FilterDocument. 
The FilterGenerator gets the SAX events directly from the backend 
without any XML binding. The advantage is the cacheability of the 
FilterDocuments. They can be reused on the next request (the caching is 
only not implemented in the generator until now). The architecture is 
highly pluggable.


Bastian Breithaupt wrote:

> Hi!
> I would like to set up a Model2 application with Cocoon end EJBs.
> Cocoon would be the presentation layer (also the controller layer?)
> and the business logic would be represented by the EJBs. (?)
> Are there any "Best Practices" for Cocoon working with EJBs?
> (suggestions, links, publications, documentation, ...)
> I suppose, calling the EJB-API is done by Cocoon-Actions...? (for
> example by using business delegation pattern)
> When using flow scripts, does it make sense to use actions? (how
> mature is flow script?)
> Any help, hint, link, ... is appreciated.
> Thank you in advance,
> Bastian

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