Re: Issue-34 Back_to_Basics proposal

Hi Henry,

I think John's off today so I'll offer my understanding of his proposal.

In John's proposal, Container is a subclass of Aggregation so if a 
resource is a Container it is by definition also an Aggregation.

Whether a member resource gets deleted when a collection is deleted merely 
hinges on whether it is a Container (i.e., and an Aggregation) or only an 
Aggregation (i.e., and not a Container).

In either case when a member resources is deleted it is removed from the 
collection.
--
Arnaud  Le Hors - Software Standards Architect - IBM Software Group


Henry Story <henry.story@bblfish.net> wrote on 02/01/2013 12:18:26 PM:

> From: Henry Story <henry.story@bblfish.net>
> To: John Arwe/Poughkeepsie/IBM@IBMUS, 
> Cc: public-ldp-wg@w3.org
> Date: 02/01/2013 12:19 PM
> Subject: Re: Issue-34 Back_to_Basics proposal
> 
> Hi John,
> 
> Reading your "Interaction Model" section, you point out that I added
> an additional constraint 
> on HTTP DELETE, namely that deleting the resource removes it from 
> the containers 
> listing.  As you seem to think it is a good idea, I wonder if one 
> should add that 
> as a new issue on its own.
> 
> In the section "Creating a member resource"
> http://www.w3.org/2012/ldp/wiki/
> Issue-34:_Back_to_Basics#Creating_a_member_resource
> 
> you have a resource that ends up being an Aggregation and a 
> Container. I don't understand how one would know how to distinguish 
> the meaning of rdfs:member in such a collection. Does the thing it 
> points to when deleted get remove from the container always? In 
> which case is there a point still to call it an Aggregation?
> 
> Henry
> 
> On 31 Jan 2013, at 22:01, John Arwe <johnarwe@us.ibm.com> wrote:
> 
> Not having seen any replies to [1], wondering if it got lost in the 
> shuffle.  This is the same proposal [2] mentioned on this week's 
> call for how to resolve the issue and define an interaction model 
> covering both aggregation and composition.
> 
> [1] http://lists.w3.org/Archives/Public/public-ldp-wg/2013Jan/0330.html 
> [2] http://www.w3.org/2012/ldp/wiki/Issue-34:_Back_to_Basics
> 
> Best Regards, John
> 
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