Cleaning up an ASO on session expiration (or termination)

[Steven Woolley <wo...@gmail.com>]

I have an ASO that is acting as a listener to a service.  I am  
probably doing things stupidly, but it (almost) works.  When the ASO  
is created, it adds itself as a listener to the service, but I have  
no way of removing it as a listener when the session expires or is  
explicitly terminated.  I know I can probably fudge something  
together with a servlet sessionlistener  filter that finds my ASO in  
the session and "cleans it up", but I'd have to assume I know how to  
get the ASO from the session outside of tapestry, which is subject to  
change, so I don't really want to do that.  Is there any way to  
define how an ASO is cleaned up when no longer used, or any  
suggestions for a better way to do this?
Thanks,
Steve


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