RE: Updated Tombstones Draft, Take 2

[Brian Smith]

Tatsuya Noyori wrote:
> I like Atom syntax. And I think analogy is important. So I 
> hope that the tombstones is similar in syntax to Atom 
> syndication format.

I agree.

> I hope Sync covers Media Entry, such as image files or pdf 
> files. And I think Media Entry needs Atom Feed like the following.
> 
> <entry>
>   <title>Test.gif</title>
>   <link rel="media"
> href="http://localhost:8080/roller/Tokyo/resource/images/Test.gif"/>
>   
> <id>http://localhost:8080/roller/roller-services/app/Tokyo/res
> ource/images/Test.gif</id>
>   <published>2007-11-02T05:20:58Z</published>
>   <updated>2007-11-02T05:20:58Z</updated>
>   <content type="xhtml">
>     <div xmlns="http://www.w3.org/1999/xhtml";>
>       <a 
> href="http://localhost:8080/roller/Tokyo/resource/images/Test.gif"/>
>     </div>
>   </content>
> </entry>

As a RFC 5023 media link entry, it would look like this:

  <entry>
    <title>Test.gif</title>
    <link rel="media"
 
href="http://localhost:8080/roller/Tokyo/resource/images/Test.gif"/>
 
<id>http://localhost:8080/roller/roller-services/app/Tokyo/resource/imag
es/Test.gif</id>
    <published>2007-11-02T05:20:58Z</published>
    <updated>2007-11-02T05:20:58Z</updated>
    <content
src='http://localhost:8080/roller/Tokyo/resource/images/Test.gif'/>
  </entry>

>   <!-- Extended deleted-entry -->
>   <at:deleted-entry>
>     <at:link rel="media-trash"
> href="http://localhost:8080/roller/Tokyo/resource/images/Test.gif"/>
>     
> <at:id>http://localhost:8080/roller/roller-services/app/Tokyo/
> resource/images/Test.gif<at:id>
>     <at:deleted>2005-11-29T12:11:12Z<at:deleted>
>     <at:by>
>       <at:name>John Doe</at:name>
>       <at:email>[EMAIL PROTECTED]</at:email>
>     </at:by>
>   </at:deleted-entry>
> </feed>

An AtomPub client that depends on anything more than that <atom:id>
element being present in a tombstone is going to be non-portable. For
that reason, I recommend against putting additional information in the
tombstone. 

Anyway, it is better to specify the trash/soft delete/undelete mechanism
seperately from the tombstone mechanism.

- Brian