[oslc-core] Enhancing OSLC Query filtering

[Dragos Cojocari]

Thanks Arthur. I've seen the oslcTerms but I don't think  it can behave as 
a replacement of oslc.where with additional predicates. There are 2 
reasons that make me say this:
- it seems it's possible for results that do not match the search terms to 
be returned ( with oslc.score = 0) meaning that a larger set of data than 
needed will be returned. Is my interpretation correct?
- the searchTerms performs sorting on the result set and it is defined to 
override the oslc.sort parameter which might be not desirable in all 
cases.

Regards,
        Dragos




Arthur Ryman <ryman at ca.ibm.com> 
05/30/2011 03:00 PM

To
Dragos Cojocari/Romania/IBM at IBMRO
cc
oslc-core at open-services.net, oslc-core-bounces at open-services.net
Subject
Re: [oslc-core] Enhancing OSLC Query filtering






Dragos,

There is a full text search mechanism. oslc.searchTerms [1]

The query syntax was intended to be simple and relatively easy to 
implement. For complex queries, we should use a standard query language, 
e.g. SPARQL. So rather than enhance the simple query syntax, we should be 
promoting query based on SPARQL, e.g. from an index.

[1] 
http://open-services.net/bin/view/Main/OSLCCoreSpecQuery?sortcol=table;up=#oslc_searchTerms


Regards, 
___________________________________________________________________________ 


Arthur Ryman 


DE, PPM Chief Architect

IBM Software, Rational 

Toronto Lab | +1-905-413-3077 
Twitter | Facebook | YouTube







From:
Dragos Cojocari <dragos.cojocari at ro.ibm.com>
To:
oslc-core at open-services.net
Date:
05/30/2011 06:17 AM
Subject:
[oslc-core] Enhancing OSLC Query filtering
Sent by:
oslc-core-bounces at open-services.net



Hey all, 

the  oslc.where parameter of OSLC queries allow filtering data using basic 

operators. In some cases this is not sufficient as expressing conditions 
using basic operators is either not possible or very cumbersome. Can the 
OSLC Query be enhanced with some common used predicates such as "like", 
"contains" etc? An example is searching for all the resources that contain 

a specific word in their dc:title property. 

Regards, 
     Dragos

Exceptand situatiile in care partile au convenit in alt mod: / Unless 
stated otherwise above:
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Exceptand situatiile in care partile au convenit in alt mod: / Unless 
stated otherwise above:
IBM România S.R.L.
Bucharest Business Park, Corp A2, Şos. Bucureşti-Ploieşti Nr. 1A, 013681
Bucureşti 1, ROMANIA
CIF RO378660, RC J/40/5106/1991
Cap.Soc. 41.670 Lei
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