Hi Florin,

On Oct 31, 2008, at 12:35 PM, 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 There was an old design page for it but it was outdated and afterwards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?

We've already chosen solution 2).

However there are 2 speeds:
* We have committers working on reimplementing existing parts of XWiki  
(rendering, wysiwyg editor, storage, velocity, localization, etc).  
When these parts are finished other components should use them and not  
go through the bridge
* We have committers like yourself working on new components. If there  
are no "clean" componentized solution then they should use and enrich  
the bridge when needed and help refactor the code later on when clean  
components are ready.

Thanks
-Vincent
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