Re: negative test case question

But you said initially that the failure of the mapping would depend on the
data. I understand that if in the data, everything is an IRI, then the
mapping succeeded. If everything was not an IRI, then the mapping would
fail because all the triples are "wrong". But if the data is mixed. Is the
mapping right or wrong?


On Thu, Feb 9, 2012 at 9:53 PM, Souripriya Das <SOURIPRIYA.DAS@oracle.com>wrote:

> If the SPARQL query you are executing does not need to return or use the
> constructed IRI from that one bad row, then the query should succeed.
> Otherwise it should fail with an error such as "illegal IRI in data" or
> something along that line.
>
> Thanks,
> - Souri.
>
> ----- Original Message -----
> From: juanfederico@gmail.com
> To: SOURIPRIYA.DAS@oracle.com
> Cc: public-rdb2rdf-wg@w3.org
> Sent: Thursday, February 9, 2012 10:37:08 PM GMT -05:00 US/Canada Eastern
> Subject: 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
>>
>>
>>
>>
>