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From Jorg Heymans ...@domek.be>
Subject Re: Sub-sitemap static initialization
Date Tue, 02 Mar 2004 09:59:48 GMT
how about using a static initializer block in the action ?

ie
class mybla extends action
static{
//your stuff gets executed only once when the class is loaded

}

You can then have different actions for different subsitemaps.

it's a bit of a bodge but could do the trick here.


Jean-Luc Mathieu wrote:

> I'm new to this mailing list (and Cocoon), I didn't new this expression, but it
> sounds great ! I will print it and put it on the wall in front of me .. :-D
> 
> In fact, I have to run a static method in a class which configure my
> application. This method must be run once, before some sub-sitemaps that use
> initialized data run. So the operations are :
> 
> - Cocoon starts
> - A user requests a page that is served by a sub-sitemap, say /cocoon/sub1/...
> - The init static method is run
> - The page is built and served
> - Another user request a page in the same sub-sitemap (/cocoon/sub1/...)
> - The page is directly built and served
> ...
> 
> One way to do it is to initialize all data in the init process of the
> CocoonServlet, but I have to override CocoonServlet, and i lose sitemap
> hierarchy and scalability - but it works. Second way is what 
> Unico said, but the action is always run, not only the first time the
> sub-sitemap is mounted - it can become a potential performance bottleneck. I'm
> sure there is a lot of other ways to do it ...
> 
> Regards,
> JL
> 
> 
>>-----Message d'origine-----
>>De : news [mailto:news@sea.gmane.org] De la part de Jorg Heymans
>>Envoyé : mardi 2 mars 2004 10:04
>>À : users@cocoon.apache.org
>>Objet : Re: Sub-sitemap static initialization
>>
>>Can you explain your use-case a bit more? Remember TUIMTOWTDIIC
>>- there usually is more than one way to do it in Cocoon :)
>>Jean-Luc Mathieu wrote:
>>
>>
>>>Hmm, I tested it, and you're right. Finally, it's not completely what I
>>
>>wanted
>>
>>>to do. Any other ideas ?
>>>
>>>
>>>
>>>>-----Message d'origine-----
>>>>De : news [mailto:news@sea.gmane.org] De la part de Jorg Heymans
>>>>Envoyé : mardi 2 mars 2004 08:47
>>>>À : users@cocoon.apache.org
>>>>Objet : Re: Sub-sitemap static initialization
>>>>
>>>>
>>>>
>>>>>One thing I can think of that you could do is to wrap your sitemap mount
>>>>>with an action.
>>>>>
>>>>>The mounting sitemap:
>>>>>
>>>>><map:match pattern="blah/**">
>>>>> <map:act type="initscript">
>>>>>   <map:mount src="sitemap" uri-prefix="blah" />
>>>>> </map:act>
>>>>></map:match>
>>>>>
>>>>How does the above guarantee that the action is only run once?
>>>>Subsequent requests to blah/whatever from different users will run the
>>>>action again IMO, unless there is something in the action that knows it
>>>>has been run once.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>The initscript would execute the script only once.
>>>>>
>>>>>Hope that helps,
>>>>>Unico
>>>>>
>>>>>Jean-Luc Mathieu wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Hello !
>>>>>>
>>>>>>
>>>>>>
>>>>>>I have to launch an init script (a Java piece of program) at Cocoon
>>>>>>startup
>>>>>>(more precisely on the time the first user to connect requests a specific
>>>>>>sub-sitemap). Is it a simple way to do this using for example sitemaps
>>>>>>only, or
>>>>>>I have to override CocoonServlet ?
>>>>>>Thank you in advance.
>>>>>>
>>>>>>
>>>>>>
>>>>>>Jean-Luc
>>>>>>
>>>>>>
>>>>
>>>>
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>>>
>>>
>>
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> 
> 


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