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From Jeremy Quinn <jer...@media.demon.co.uk>
Subject Re: flow: release resources after the view is generated
Date Fri, 11 Jun 2004 09:17:59 GMT
Hi Guys,

catch (return) {session.close ()}

has worked fine when I needed it in the past.

What confused me about it was that the 'catch' statement is not paired 
with a 'try' or a 'finally'  statement it sits by iteslf.

HTH

regards Jeremy


On 10 Jun 2004, at 09:15, Reinhard Poetz wrote:

> Leszek Gawron wrote:
>
>> One of the users had reported an example that needs resolving. As it 
>> is something that affects also me I didn't want to wait for him to 
>> post some questions.
>>
>> Imagine you obtain some resources that need to be  valid during view 
>> rendering. A hibernate session is a good example. You need to have it 
>> open during view generation. Otherwise you will not be able to use 
>> lazy initialized collections. The problem is that cocoon.sendPage 
>> does not wait for the view generation to be finished:
>>
>> var session = obtainHibernateSession();
>> var bizData = getSomeBizDataUsingSession( session );
>> cocoon.sendPage( "view.jx", { biz: bizData } );
>> session.close();
>>
>> This example will throw if bizData contains lazy collections because 
>> when they will be accessed session will already be closed. AFAIU 
>> there is no way to call any piece of code when you are sure that view 
>> rendering has finished. This is a very common case I think so this 
>> should be solved somehow.
>>     LG
>>
>
> maybe this 
> (http://wiki.cocoondev.org/Wiki.jsp?page=RhinoWithContinuations) helps 
> - see the part containing catch(return)
>
> -- 
> Reinhard
>
>
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