[Seaside] Computation has been terminated

[Derek Brans]

Avi, thanks for your reply.

I did some hunting around and noticed that I overrode "initialize" on 
the class side in one of my entryPoint components.  I added "super 
initialize" and the application seems to be working now.  Would that 
mistake account for the error I was seeing?

Why does WAComponent>>initialize recompile all its subclasses?

Thanks again,

Derek



On Monday, January 13, 2003, at 11:57 AM, Avi Bryant wrote:

>
> Derek,
>
> At the point that a session is asked to handle a request, it captures 
> the
> current continuation and stores it in the instance variable 'shortJmp'
> (which should now probably be renamed to something like 
> 'escapeRequest').
> Whenever the response is finished, it invokes this continuation using
> #oneShotValue, and #handleRequest: returns.
>
> The point of #oneShotValue is that it can only be invoked once - which 
> is
> what we want here, since for each request there can only be one 
> response.
> If you try to invoke a continuation with #oneShotValue twice (ie, if you
> try to respond twice to the same request), you will get the "Computation
> has been terminated" error.  Essentially, you can interpret that error 
> as
> "you've been messing about in the guts of Session and are violating some
> essential invariant it depends on".
>
> What does your custom Session subclass actually do?
>
>  On Sat, 11 Jan 2003, Derek Brans wrote:
>
>> So, I'm getting a little error.
>>
>> The first page of my application loads fine, but when I click on any
>> links I get the error:
>>
>> "Computation has been terminated"
>>
>> Method Context>>cannotReturn
>> Continuation>>oneShotValue
>> [] in XESession(WASession)>>handleRequest:response:
>>
>> Any ideas?
>>
>> Thanks,
>> Derek
>>
>>
>>
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