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From Phil Blake <>
Subject Re: javax.servlet.http.HttpSession access from XSP?
Date Tue, 03 Feb 2004 05:44:07 GMT
> By the way, it's important that people know the basic reason Cocoon 
> doesn't give you an HTTP session.  Cocoon abstracts the environment so 
> that it can be run from many different environments, not just 
> http/servlet.  Currently the command line interface is the only other 
> implemented environment but even there dependency on servlet jar and 
> HttpSession obviously makes no sense.  Examples of other potential 
> environments which have been discussed are email (via James) and JMS.
> Now, that doesn't mean it should be impossible to get to the 
> HttpSession if you are in that environment and that's what we need to 
> see.  I think the method which is used in the other environment 
> abstractions (Request for example) won't work here, but I don't see a 
> reason cocoon's session couldn't implement HttpSession.  Right now, it 
> seems the only methods unimplemented from the javax interface are the 
> deprecated methods. Another alternative would be to use JDK 1.3 
> dynamic proxy which may work if the code you pass the proxy to doesn't 
> call the deprecated methods (I can't remember for sure if this is 
> true).

Good point Geoff.

This is a specialised case. I think you'd only want access to the 
HttpSession for this kind of integration. Perhaps a _wrappedSession() 
method on org.apache.cocoon.environment.Session is too easy to abuse. A 
little opinionated documentation could help with that. :)

Any comments?



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