[oslc-core] Fw: Questions on Query in Core Spec.

[Arthur Ryman]

Tack,

1) I suggested we define an oslc:instanceShape property that a resource 
could use to point to its shape. You could retrieve that via a query like 
http://example.com/resource/1234?oslc.properties=oslc:instanceShape

2) Yes, you can nest to any depth.

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:
Tack Tong/Toronto/IBM at IBMCA
To:
oslc-core at open-services.net
Date:
04/26/2010 12:37 PM
Subject:
[oslc-core] Fw:  Questions on Query in Core Spec.
Sent by:
oslc-core-bounces at open-services.net



Arthur,

Thanks for the response.

1. "GET the service provider and look for the shape resources. Find the 
one for the rdf:type of the initial resource." In the Core Spec., 
oslc:shape only got defined within the context of Creation Factory and 
Query Capability. There is no way to relate a rdf:type of the initial 
resource with a Creation Factory. Just looking at a Creation Factory, 
there is no way to tell which resource type it is for. One have to look 
into the oslc:shape it refers to find out the type of the resource. It is 
not practical to get all resource shapes in all Creation Factory and 
figure out which one matches. Also, we should not assume a shape for 
creation is the same as the shape for query. Similar situation for 
oslc:shape in Query Capability. It looks like we need either 1) be able to 
specify resource shape of all resources (outside context of Creation 
Factory and Query Capability) in the Service Provider Resource, or 2) 
specify the shape in the original resource itself. 

2. So, oslc.properties=*{*{*}} would get me all properties to 2 level deep 
nested, right?

Tack Tong
IBM Rational software
tacktong at ca.ibm.com
905-413-3232
tie line 313-3232
----- Forwarded by Tack Tong/Toronto/IBM on 04/26/2010 12:19 PM -----


From:

Arthur Ryman/Toronto/IBM

To:

Tack Tong/Toronto/IBM at IBMCA

Cc:

oslc-core at open-services.net, oslc-core-bounces at open-services.net

Date:

04/26/2010 10:25 AM

Subject:

Re: [oslc-core] Questions on Query in Core Spec.


Tack,

1. Correct - you don't create a Query Capability for every resource since 
there are an unbounded number of them. You'd only create Query 
Capabilities for a few "root" resources. You'd query those to find other 
resources. To discover the shape of a resource do the following: 
1.      GET the resource and look at its rdf:type and other properties. 
One of them should link back to the service provider, directly e.g. 
oslc:serviceProvider, or indirectly. 
2.      GET the service provider and look for the shape resources. Find 
the one for the rdf:type of the initial resource.

2. Correct, oslc.properties=*{*} matches all the properties of a resource, 
and all of its nested properties (to depth 1).

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




Tack Tong---04/25/2010 10:15:52 PM---1. One can use oslc.properties to 
query on an OSLC resource. e.g. http://example.com/bugs/4242?oslc.


From:

Tack Tong/Toronto/IBM at IBMCA

To:

oslc-core at open-services.net

Date:

04/25/2010 10:15 PM

Subject:

[oslc-core] Questions on Query in Core Spec.

Sent by:

oslc-core-bounces at open-services.net



1. One can use oslc.properties to query on an OSLC resource. e.g. 
http://example.com/bugs/4242?oslc.properties=dc:title,dc:creator
{foaf:givenName,foaf:familyName} 
If I was given the URL of a resource (such as http://example.com/bugs/4242
), how do I find out its Resource Shape so that I know what are the 
properties to query on. I don't think I can create a self subject Query 
Capability of every individual resource. 

2. The wildcard oslc.properties=* and oslc.select=* should return all 
properties of the resource and all properties of the members in the list. 
How do I specify to return all properties including properties of all 
nested properties? Do I use oslc.properties=*{*} or something similar?

Tack Tong
IBM Rational software
tacktong at ca.ibm.com
905-413-3232
tie line 313-3232_______________________________________________
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