[OSLC] Request for Comment on Common Query Syntax V1

[Arthur Ryman]

I moved the spec out of the Sandbox and onto the Main wiki at [1]. I'd 
like to discuss the following points:

1. Semantics of the query syntax: I suggest we give the semantics in terms 
of RDF. Here RDF is used to describe the underlying data model, i.e. we 
assume that all OSLC specs describe the data model of their resources 
using RDF. The representation returned can be any format, e.g. JSON. We do 
not require an implementation to use RDF natively. We define standard 
mappings from RDF to other formats, e.g. JSON.

2. Nested properties. The CM version allowed nested properties via {}. 
This is very useful, both for query and inlining of results. I suggest we 
add this to the spec.

3. The query parameter names. The CM spec used oslc_cm:query and 
oslc_cm:properties for what are essentially the WHERE and SELECT clauses 
of a query, i.e. oslc_cm:query is like the WHERE clause and 
oslc_cm:properties is like the SELECT clause. Since query is an overloaded 
term, I suggest we use oslc:select and oslc:where for these parameters, or 
oslc_select and oslc_where if you don't like colons.

[1] http://open-services.net/bin/view/Main/OslcQuerySyntaxV1

Arthur Ryman, IBM DE
Chief Architect, Rational Project and Portfolio Management
Office: 905-413-3077, Cell: 416-939-5063
Assistant: Nancy Barnes, 905-413-4182 
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