Re: negative test case question

Ok. I see.

If I have one million rows and they all have IRIs for the FirstName column,
except for one row... then what happens? Or is this just an implementation
issue.


Juan Sequeda
+1-575-SEQ-UEDA
www.juansequeda.com


On Thu, Feb 9, 2012 at 9:16 PM, Souripriya Das <SOURIPRIYA.DAS@oracle.com>wrote:

> Whether the following mapping will fail or not will depend upon the data:
>
> <TriplesMap1>
>     a rr:TriplesMap;
>     rr:logicalTable [ rr:tableName "Employees" ];
>  rr:subjectMap [ rr:column "FirstName" ];
>  rr:predicateObjectMap
>     [
>       rr:predicate foaf:name;
>       rr:objectMap    [ rr:column "FirstName" ]
>     ]
>
> For example, it will not fail for the following data (with uncommon first
> names) in the EMPLOYEES table:
>
> FirstName
> -----------
> http://example.com/ns#John
> http://example.com/ns#Mary
>
> Thanks,
> - Souri.
>
> ----- Original Message -----
> From: bvillazon@fi.upm.es
> To: juanfederico@gmail.com
> Cc: richard@cyganiak.de, public-rdb2rdf-wg@w3.org
> Sent: Thursday, February 9, 2012 9:17:46 PM GMT -05:00 US/Canada Eastern
> Subject: Re: negative test case question
>
> Hi Juan
>
> Thanks for this
>
> On Feb 10, 2012, at 1:56 AM, Juan Sequeda wrote:
>
> Let me clarify
>
> The following mapping is correct:
>
> <TriplesMap1>
>     a rr:TriplesMap;
>     rr:logicalTable [ rr:tableName "Employees" ];
>  rr:subjectMap [ rr:column "FirstName"; rr:termType rr:BlankNode ];
> rr:predicateObjectMap
>     [
>       rr:predicate foaf:name;
>       rr:objectMap    [ rr:column "FirstName" ]
>     ]
>     .
>
> The following mapping should fail:
>
> <TriplesMap1>
>     a rr:TriplesMap;
>     rr:logicalTable [ rr:tableName "Employees" ];
> rr:subjectMap [ rr:column "FirstName" ];
>  rr:predicateObjectMap
>     [
>       rr:predicate foaf:name;
>       rr:objectMap    [ rr:column "FirstName" ]
>     ]
>     .
>
> right?
>
>
> According to the spec
> <<
>
> If the term map does not have a rr:termType property, then its term type<http://www.w3.org/2001/sw/rdb2rdf/r2rml/#dfn-term-type>
>  is:
>
>    - rr:Literal, if it is an object map<http://www.w3.org/2001/sw/rdb2rdf/r2rml/#dfn-object-map> and
>    at least one of the following conditions is true:
>       - It is a column-based term map<http://www.w3.org/2001/sw/rdb2rdf/r2rml/#dfn-column-valued-term-map>
>       .
>       - It has a rr:language property (and thus a specified language tag<http://www.w3.org/2001/sw/rdb2rdf/r2rml/#dfn-specified-language-tag>
>       ).
>       - It has a rr:datatype property (and thus a specified datatype<http://www.w3.org/2001/sw/rdb2rdf/r2rml/#dfn-specified-datatype>
>       ).
>    - rr:IRI, otherwise.
>
> >>
> So, if the FirstName column has "normal" first names … I think yes, it
> would fail
>
> Richard?
>
> Boris
>
>
>
>
> Juan Sequeda
> +1-575-SEQ-UEDA
> www.juansequeda.com
>
>
> On Thu, Feb 9, 2012 at 6:33 PM, Richard Cyganiak <richard@cyganiak.de>wrote:
>
>> Juan,
>>
>> On 9 Feb 2012, at 23:51, Juan Sequeda wrote:
>> > I'm coming up with r2rml mappings that should fail.
>> >
>> > The following is correct:
>> >
>> > <TriplesMap1>
>> >     a rr:TriplesMap;
>> >     rr:logicalTable [ rr:tableName "Employees" ];
>> >       rr:subjectMap [ rr:column "FirstName"; rr:termType rr:BlankNode ];
>> >       rr:predicateObjectMap
>> >     [
>> >       rr:predicate foaf:name;
>> >       rr:objectMap    [ rr:column "FirstName" ]
>> >     ]
>> >     .
>> >
>> >
>> > If I take the rr:TermType rr:BlankNode, that should fail, right?
>>
>> I'm not sure what you mean. Do you mean, if you add “rr:termType
>> rr:BlankNode” to the object map, then it should fail?
>>
>> Why do you think so?
>>
>> Richard
>
>
>
>