[oslc-core] Query syntax BNF - What is uri_ref_esc ?

[Arthur Ryman]

Steve,

The attribute rdf:resource is just the RDF/XML syntax for specifying the
object of a triple. rdf:resource is itself not a property.

I saw this comment from Ian Green:

   I would like to query for resources that have a relationship to some
   URI. So for example:


   <oslc:resource>
     <dc:title>some resource</dc:title>
     <acme:relationship rdf:resource="http://cyote.com/res/res1"/>
   </oslc:resource>
   how would I construct a query to get all resources that have a
   <acme:relationship> with a the rdf:resource attribute of
   http://cyote.com/res/res1?


   we could treat rdf:resource as a special case I guess, but what if the
   property was:


   <acme:relationship priority="high"
   df:resource="http://cyote.com/res/res1"/>



Assume that the acme: prefix is mapped to http://acme.example.org/ns.
Assume the query URL is http://acme.example.org/resource,  and its members
are the resources of type <oslc:resource> The query would be:


   http://acme.example.org/resource?oslc.prefix=acme=<http://acme.example.org/ns>&oslc.where=acme:relationship=<http://cyote.com/res/res1>



Is this example what you are looking for? If so I'll add it to the spec.

If either URLs contain a '>' character, then it would be escaped as '\>'.

Regards,
___________________________________________________________________________
                                                                               
 Arthur Ryman, PhD, DE                                                         
                                                                               
 Chief Architect, Project and Portfolio Management                             
                                                                               
 IBM Software, Rational                                                        
                                                                               
 Markham, ON, Canada | Office: 905-413-3077, Cell:       Twitter | Facebook |  
 416-939-5063                                                         YouTube  
                                                                               
                                                                               
                                                                               




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  |Steve K Speicher/Raleigh/IBM at IBMUS                                                                                                                |
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  |Arthur Ryman <ryman at ca.ibm.com>                                                                                                                   |
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  |oslc-core at open-services.net                                                                                                                       |
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  |07/21/2010 11:24 AM                                                                                                                               |
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  |Re: [oslc-core] Query syntax BNF - What is uri_ref_esc ?                                                                                          |
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Arthur,

Thanks.  It would be helpful to see an example of this in the spec as
well.  Specifically, some questions I've heard is how one would reference
@rdf:resource and quoting, etc.

For example, how to query for a specific user URI.

Thanks,
Steve

Arthur Ryman <ryman at ca.ibm.com> wrote on 07/21/2010 09:57:04 AM:

> From: Arthur Ryman <ryman at ca.ibm.com>
> To: Steve K Speicher/Raleigh/IBM at IBMUS
> Cc: oslc-core at open-services.net, oslc-core-bounces at open-services.net
> Date: 07/21/2010 09:57 AM
> Subject: Re: [oslc-core] Query syntax BNF - What is uri_ref_esc ?
>
> Steve,
>
> This was defined in the selective properties BNF, which used to be in
the
> same document. After the split it got orphaned. I added back the
> following:
>
> uri_ref_esc   ::= /* an angle bracket-delimited URI reference in which >

> and \ are \-escaped. */
>
> Regards,
>
___________________________________________________________________________


>
> Arthur Ryman, PhD, DE
>
>
> Chief Architect, Project and Portfolio Management
>
> IBM Software, Rational
>
> Markham, ON, Canada | Office: 905-413-3077, Cell: 416-939-5063
> Twitter | Facebook | YouTube
>
>
>
>
>
>
>
> From:
> Steve K Speicher <sspeiche at us.ibm.com>
> To:
> oslc-core at open-services.net
> Date:
> 07/20/2010 07:19 PM
> Subject:
> [oslc-core] Query syntax BNF - What is uri_ref_esc ?
> Sent by:
> oslc-core-bounces at open-services.net
>
>
>
> The BNF Syntax at [1] seems to exclude the definition of uri_ref_esc
which
>
> is used to define:
>
> value         ::= uri_ref_esc | literal_value
>
> [1]
> http://open-services.net/bin/view/Main/OSLCCoreSpecQueryDRAFT?
> sortcol=table;up=#oslc_where
>
>
> Thanks,
> Steve Speicher | IBM Rational Software | (919) 254-0645
>
>
> _______________________________________________
> Oslc-Core mailing list
> Oslc-Core at open-services.net
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>
>
>


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