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Re: Comments on Action:draft-brown-versioning-link-relations-03

From: Jan Algermissen <algermissen1971@mac.com>
Date: Thu, 26 Nov 2009 17:25:06 +0100
Cc: Julian Reschke <julian.reschke@gmx.de>, Atom-syntax Syntax' <atom-syntax@imc.org>, WebDAV <w3c-dist-auth@w3.org>
Message-id: <5FB7A4E2-4015-4FB1-A5A8-561644A928BC@mac.com>
To: Jan Algermissen <algermissen1971@mac.com>

On Nov 26, 2009, at 5:21 PM, Jan Algermissen wrote:

>
> On Nov 26, 2009, at 2:29 PM, Julian Reschke wrote:
>
>>
>> "When a resource is put under version control, it becomes a  
>> "versioned resource". Many servers protect versioned resources from  
>> modifications by considering them "checked in", and by requiring a  
>> "checkout" operation before modification, and a "checkin" operation  
>> to go back to the "checked-in" state. Other servers allow  
>> modification, in which case the checkout/checkin operation may  
>> happen implicitly."
>>
>


Forgot to insert:

What about:


>> When a resource is put under version control, it becomes a  
>> "versioned resource". Many servers protect versioned resources from  
>> modifications by considering them "checked in", and by requiring a  
>> "checkout" operation before modification, and a "checkin" operation  
>> to go back to the "checked-in" state. Other servers allow  
>> modification and perfrom versioning without requiring an explicit  
>> checkout operation.
>
>
> I feel there should be the notion of 'modification of checked-out  
> working copy' in there but I don't mean to say that your above  
> wording isn't suitable also.
>
> Jan
>


Sorry,
Jan




>
>> Best regards, Julian
>>
>>
>>
>> Julian Reschke wrote:
>>> Hi Jan,
>>> first of all thanks for the feedback!
>>> Jan Algermissen wrote:
>>>> Julian,
>>>>
>>>> some comments on the link relation draft:
>>>>
>>> > 2. Terminology
>>>>
>>>> It is not clear to me, what the meaning of 'check out' and 'check  
>>>> in'.
>>> Yes, we need to add text here. We originally started with the  
>>> definitions with RFC 3253 (WebDAV versioning), but later on  
>>> decided later on to just rely on generic definitions to make this  
>>> work better with CMIS and JCR.
>>>> Also, the text (IMO) creates the impression that versioning can  
>>>> only take place when 'check out' and 'check in' are applied.  
>>>> However, a resource could also be versioned by the server upon  
>>>> any modification made by a client regardless of any 'checking  
>>>> out' or 'checking in'. The link relations specified would still  
>>>> make sense.
>>> Indeed; and that's something that can even happen in WebDAV  
>>> versioning (through the various modes of auto-versioning).
>>>> Assuming that 'checking out' and 'checking in' are operations on  
>>>> resources, I think the draft should address how clients achieve  
>>>> these operations. This would at least involve another link  
>>>> relation and specification how to use the linked resource to  
>>>> perform a checkout.
>>> These kinds of operations are specific to the protocol in which  
>>> they are used, while the link relations are meant to be generic;  
>>> thus I'd avoid to go that way.
>>> For now, I've added this to the issues list: <http://greenbytes.de/tech/webdav/draft-brown-versioning-link-relations-issues.html#issue.checked-out 
>>> >. I'll try to make a change proposal soonish.
>>>> Or am I misunderstanding what the draft is trying to do?
>>>>
>>>> Appendix A
>>>>
>>>> It should be 'working-copy' instead of 'working-resource'.
>>> Indeed. Thanks for catching this.
>>>> I am glad to see this happening. Covers a lot of stuff that comes  
>>>> up in almost every project. Thanks.
>>> That's good to hear, because defining generic link relations  
>>> doesn't make sense unless there are generic use cases for them :-)
>>> Best regards, Julian
>>
>
> --------------------------------------
> Jan Algermissen
>
> Mail: algermissen@acm.org
> Blog: http://algermissen.blogspot.com/
> Home: http://www.jalgermissen.com
> --------------------------------------
>
>
>
>

--------------------------------------
Jan Algermissen

Mail: algermissen@acm.org
Blog: http://algermissen.blogspot.com/
Home: http://www.jalgermissen.com
--------------------------------------
Received on Thursday, 26 November 2009 16:25:45 GMT

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