Sergiu Dumitriu wrote:
> Florin Ciubotaru wrote:
>   
>> Hi Vincent,
>>
>> Vincent Massol wrote:
>>     
>>> Hi Florin,
>>>
>>> On Oct 31, 2008, at 10:56 AM, Florin Ciubotaru wrote:
>>>
>>>   
>>>       
>>>> Hi devs,
>>>>
>>>> We currently have a comments plug-in that  is written  for a custom
>>>> core. This plug-in enables us to have hierarchical comments and  
>>>> several
>>>> storage implementations.
>>>>     
>>>>         
>>> This sounds very cool (threaded comments have been asked several  
>>> times). Can you give more information:
>>> * Where is it located?
>>> * Is there a design page for it or at least what's the full spec for it?
>>> * What's your roadmap for it?
>>>   
>>>       
>> The plug-in was written initially by Raluca and Ludovic and is located 
>> here:
>> - https://svn.xwiki.org/svnroot/xwiki/sandbox/plugins/comments/
>> There was an old design page for it but it was outdated and afterwards 
>> deleted. Now we have only a layout design page, here:
>> - http://dev.xwiki.org/xwiki/bin/view/Design/NewCommentsImplementation
>> The first thing we should do is to see how we can integrate it with the 
>> platform. Ludovic made a patch for the core, can you review it and see 
>> if you can apply it?
>> I need to finish the test suite for it and do some refactoring.
>> My intention is to rewrite the plug-in into a component but I'm starting 
>> to doubt that I can do that at the moment.
>>     
>>>   
>>>       
>>>> The issue I encounter when rewriting it to a plexus component is  
>>>> that I
>>>> cannot make it independent from the core. I need both read and write
>>>> access to the storage, and I could not find a bridge to it. All I  
>>>> can do
>>>> is retrieve data, with org.xwiki.bridge.DocumentAccessBridge and
>>>> org.xwiki.bridge.DocumentModelBridge, but not write data.
>>>> Does anybody know how can I write a component that needs read/write
>>>> access to the storage without using XWiki,XWikiDocument and  
>>>> XWikiContext
>>>> classes?
>>>>     
>>>>         
>>> For now you'll need to add methods to the bridge as I don't think  
>>> Artem has done the conversion of the storage to proper (i.e. using the  
>>> new architecture and not the old xwiki context one) components.
>>>   
>>>       
>> As we approach XWiki 2.0 we should put more effort into creating the 
>> bridges that we need, so that will have a fully component oriented 
>> architecture.
>> The problem is that we cannot create really powerful components, right 
>> now. I think we should avoid using 1.0 elements in the new components. 
>> The only things that we should change, when breaking the core into 
>> pieces, are the bridge components implementation. This also applies for 
>> the storage and other changes.
>> I see two options:
>> 1) We first analyze what bridges we need and start developing them. And 
>> only after that we switch to heavy implementation of components;
>> 2) We write and enrich the bridges on the fly as we create new components.
>> Which do you think is the best one?
>>     
>
> Definitely 2. This is the strategy we use already. The motivation is that:
>
> Bridges should be a temporary workaround until we have the time to
> implement the actual components. But we don't want to waste too much
> time on the bridges, since this time would be better spent writing the
> components themselves. Also, we don't want to have to change too much
> code once the bridges are no longer needed, so the bridge interface
> should be as similar as possible to the future components. But since we
> don't know how the components will really look, we can only estimate,
> and the less we have to estimate, the more likely we won't have
> discrepancies. Thus the minimality + on the fly approach to writing bridges.
>   

BTW, I have a first patch for DocumentAccessBridge, who can review it 
and potentially aplly it?

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