Re: Support for non-string plain literals?

[Jindřich Mynarz]

The serialization context I'm interest in is
org.apache.jena.query.ParameterizedSparqlString (toString():
https://github.com/apache/jena/blob/master/jena-arq/src/main/java/org/apache/jena/query/ParameterizedSparqlString.java#L1291-L1377).
I probably should have clarified that before.

However, I just noticed that if the xsd:integer datatype is provided
explicitly, then it is serialized as a plain literal:

ResourceFactory.createTypedLiteral(1000) => "1000"^^<
http://www.w3.org/2001/XMLSchema#long>
ResourceFactory.createTypedLiteral(1000, XSDDatatype.XSDinteger) => 1000

This solves my issue. Thanks for your comments!

- Jindřich

-- 
Jindřich Mynarz
http://mynarz.net/#jindrich

On Sat, Jun 25, 2016 at 4:12 PM, Andy Seaborne  wrote:

> On 25/06/16 11:42, Jean-Marc Vanel wrote:
>
>> Sorry, now it's clear.
>>
>> AFAIK internally
>> 1000
>> and
>> "1000"^^xsd:integer
>> are the same.
>> What you ask is a feature of the Turtle Writer.
>> You should look for settings of the Turtle Writer, if any.
>>
>
> It does that.  N-triples does not, nor does RDF/XML.
>
>
>> If Jena does not do it,
>> look for another tool like rapper, Euler/EYE, etc.
>>
>
> Yes - it's a syntax feature of Turtle that xsd:integer can be written that
> way. Same with xsd:decimal (if there is a dot)
>
> xsd:int and other derived types can't - it would loose the detailed type
> information.
>
> Jindřich - do you have a detailed example?
>
> Andy
>
>
>
>>
>>
>>
>> 2016-06-25 12:34 GMT+02:00 Jindřich Mynarz :
>>
>> Hi Jean-Marc,
>>>
>>> I'm aware of createTypedLiteral, but I don't want to generate typed
>>> literal, but a plain one instead, as I have indicated in my question.
>>>
>>> For example, 1000 instead of "1000"^^xsd:integer.
>>>
>>> - Jindřich
>>>
>>> --
>>> Jindřich Mynarz
>>> http://mynarz.net/#jindrich
>>>
>>> On Sat, Jun 25, 2016 at 12:32 PM, Jean-Marc Vanel <
>>> jeanmarc.va...@gmail.com>
>>> wrote:
>>>
>>> Jindrich you had to read further on the javadoc:


 - createTypedLiteral

 public static Literal
 <


>>> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/Literal.html
>>>

> createTypedLiteral(String
 <


>>> http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true
>>>

> string,
  RDFDatatype
 <


>>> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/datatypes/RDFDatatype.html
>>>

> dType)

 Answer a typed literal.
 Parameters:string - the string which forms the value of the

>>> literaldType
>>>
 - RDFDatatype of the type literalReturns:a Literal node with that

>>> string
>>>
 as value


 - createTypedLiteral

 public static Literal
 <


>>> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/Literal.html
>>>

> createTypedLiteral(Object
 <


>>> http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true
>>>

> value)

 Answer a typed literal.
 Parameters:value - a java Object, the default RDFDatatype for that
 object will be usedReturns:a Literal node with that value



 2016-06-25 11:54 GMT+02:00 Jindřich Mynarz :

 Hi,
>
> can I use Jena to create non-string plain literals, such as integers?
>
> ResourceFactory.createLiteral() (
>
>
>

>>> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/ResourceFactory.html#createPlainLiteral-java.lang.String-
>>>
 )
> is available only for strings.
>
> - Jindřich
>
> --
> Jindřich Mynarz
> http://mynarz.net/#jindrich
>
>


 --
 Jean-Marc Vanel
 Déductions SARL - Consulting, services, training,
 Rule-based programming, Semantic Web
 http://deductions-software.com/
 +33 (0)6 89 16 29 52
 Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui


>>>
>>
>>
>>
>

Re: Support for non-string plain literals?

[Andy Seaborne]

On 25/06/16 11:42, Jean-Marc Vanel wrote:

Sorry, now it's clear.

AFAIK internally
1000
and
"1000"^^xsd:integer
are the same.
What you ask is a feature of the Turtle Writer.
You should look for settings of the Turtle Writer, if any.


It does that.  N-triples does not, nor does RDF/XML.



If Jena does not do it,
look for another tool like rapper, Euler/EYE, etc.


Yes - it's a syntax feature of Turtle that xsd:integer can be written 
that way. Same with xsd:decimal (if there is a dot)


xsd:int and other derived types can't - it would loose the detailed type 
information.


Jindřich - do you have a detailed example?

Andy






2016-06-25 12:34 GMT+02:00 Jindřich Mynarz :


Hi Jean-Marc,

I'm aware of createTypedLiteral, but I don't want to generate typed
literal, but a plain one instead, as I have indicated in my question.

For example, 1000 instead of "1000"^^xsd:integer.

- Jindřich

--
Jindřich Mynarz
http://mynarz.net/#jindrich

On Sat, Jun 25, 2016 at 12:32 PM, Jean-Marc Vanel <
jeanmarc.va...@gmail.com>
wrote:


Jindrich you had to read further on the javadoc:


- createTypedLiteral

public static Literal
<


https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/Literal.html



createTypedLiteral(String
<


http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true



string,
 RDFDatatype
<


https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/datatypes/RDFDatatype.html



dType)

Answer a typed literal.
Parameters:string - the string which forms the value of the

literaldType

- RDFDatatype of the type literalReturns:a Literal node with that

string

as value


- createTypedLiteral

public static Literal
<


https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/Literal.html



createTypedLiteral(Object
<


http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true



value)

Answer a typed literal.
Parameters:value - a java Object, the default RDFDatatype for that
object will be usedReturns:a Literal node with that value



2016-06-25 11:54 GMT+02:00 Jindřich Mynarz :


Hi,

can I use Jena to create non-string plain literals, such as integers?

ResourceFactory.createLiteral() (





https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/ResourceFactory.html#createPlainLiteral-java.lang.String-

)
is available only for strings.

- Jindřich

--
Jindřich Mynarz
http://mynarz.net/#jindrich





--
Jean-Marc Vanel
Déductions SARL - Consulting, services, training,
Rule-based programming, Semantic Web
http://deductions-software.com/
+33 (0)6 89 16 29 52
Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui

Re: Support for non-string plain literals?

[Jean-Marc Vanel]

Sorry, now it's clear.

AFAIK internally
1000
and
"1000"^^xsd:integer
are the same.
What you ask is a feature of the Turtle Writer.
You should look for settings of the Turtle Writer, if any.

If Jena does not do it,
look for another tool like rapper, Euler/EYE, etc.




2016-06-25 12:34 GMT+02:00 Jindřich Mynarz :

> Hi Jean-Marc,
>
> I'm aware of createTypedLiteral, but I don't want to generate typed
> literal, but a plain one instead, as I have indicated in my question.
>
> For example, 1000 instead of "1000"^^xsd:integer.
>
> - Jindřich
>
> --
> Jindřich Mynarz
> http://mynarz.net/#jindrich
>
> On Sat, Jun 25, 2016 at 12:32 PM, Jean-Marc Vanel <
> jeanmarc.va...@gmail.com>
> wrote:
>
> > Jindrich you had to read further on the javadoc:
> >
> >
> >- createTypedLiteral
> >
> >public static Literal
> > <
> >
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/Literal.html
> > >
> > createTypedLiteral(String
> > <
> >
> http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true
> > >
> > string,
> > RDFDatatype
> > <
> >
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/datatypes/RDFDatatype.html
> > >
> > dType)
> >
> >Answer a typed literal.
> >Parameters:string - the string which forms the value of the
> literaldType
> >- RDFDatatype of the type literalReturns:a Literal node with that
> string
> >as value
> >
> >
> >- createTypedLiteral
> >
> >public static Literal
> > <
> >
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/Literal.html
> > >
> > createTypedLiteral(Object
> > <
> >
> http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true
> > >
> > value)
> >
> >Answer a typed literal.
> >Parameters:value - a java Object, the default RDFDatatype for that
> >object will be usedReturns:a Literal node with that value
> >
> >
> >
> > 2016-06-25 11:54 GMT+02:00 Jindřich Mynarz :
> >
> > > Hi,
> > >
> > > can I use Jena to create non-string plain literals, such as integers?
> > >
> > > ResourceFactory.createLiteral() (
> > >
> > >
> >
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/ResourceFactory.html#createPlainLiteral-java.lang.String-
> > > )
> > > is available only for strings.
> > >
> > > - Jindřich
> > >
> > > --
> > > Jindřich Mynarz
> > > http://mynarz.net/#jindrich
> > >
> >
> >
> >
> > --
> > Jean-Marc Vanel
> > Déductions SARL - Consulting, services, training,
> > Rule-based programming, Semantic Web
> > http://deductions-software.com/
> > +33 (0)6 89 16 29 52
> > Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui
> >
>



-- 
Jean-Marc Vanel
Déductions SARL - Consulting, services, training,
Rule-based programming, Semantic Web
http://deductions-software.com/
+33 (0)6 89 16 29 52
Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui

Re: Support for non-string plain literals?

[Jindřich Mynarz]

Hi Jean-Marc,

I'm aware of createTypedLiteral, but I don't want to generate typed
literal, but a plain one instead, as I have indicated in my question.

For example, 1000 instead of "1000"^^xsd:integer.

- Jindřich

-- 
Jindřich Mynarz
http://mynarz.net/#jindrich

On Sat, Jun 25, 2016 at 12:32 PM, Jean-Marc Vanel 
wrote:

> Jindrich you had to read further on the javadoc:
>
>
>- createTypedLiteral
>
>public static Literal
> <
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/Literal.html
> >
> createTypedLiteral(String
> <
> http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true
> >
> string,
> RDFDatatype
> <
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/datatypes/RDFDatatype.html
> >
> dType)
>
>Answer a typed literal.
>Parameters:string - the string which forms the value of the literaldType
>- RDFDatatype of the type literalReturns:a Literal node with that string
>as value
>
>
>- createTypedLiteral
>
>public static Literal
> <
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/Literal.html
> >
> createTypedLiteral(Object
> <
> http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true
> >
> value)
>
>Answer a typed literal.
>Parameters:value - a java Object, the default RDFDatatype for that
>object will be usedReturns:a Literal node with that value
>
>
>
> 2016-06-25 11:54 GMT+02:00 Jindřich Mynarz :
>
> > Hi,
> >
> > can I use Jena to create non-string plain literals, such as integers?
> >
> > ResourceFactory.createLiteral() (
> >
> >
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/ResourceFactory.html#createPlainLiteral-java.lang.String-
> > )
> > is available only for strings.
> >
> > - Jindřich
> >
> > --
> > Jindřich Mynarz
> > http://mynarz.net/#jindrich
> >
>
>
>
> --
> Jean-Marc Vanel
> Déductions SARL - Consulting, services, training,
> Rule-based programming, Semantic Web
> http://deductions-software.com/
> +33 (0)6 89 16 29 52
> Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui
>

Re: Support for non-string plain literals?

[Jean-Marc Vanel]

Jindrich you had to read further on the javadoc:


   - createTypedLiteral

   public static Literal

createTypedLiteral(String

string,
RDFDatatype

dType)

   Answer a typed literal.
   Parameters:string - the string which forms the value of the literaldType
   - RDFDatatype of the type literalReturns:a Literal node with that string
   as value


   - createTypedLiteral

   public static Literal

createTypedLiteral(Object

value)

   Answer a typed literal.
   Parameters:value - a java Object, the default RDFDatatype for that
   object will be usedReturns:a Literal node with that value



2016-06-25 11:54 GMT+02:00 Jindřich Mynarz :

> Hi,
>
> can I use Jena to create non-string plain literals, such as integers?
>
> ResourceFactory.createLiteral() (
>
> https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/ResourceFactory.html#createPlainLiteral-java.lang.String-
> )
> is available only for strings.
>
> - Jindřich
>
> --
> Jindřich Mynarz
> http://mynarz.net/#jindrich
>



-- 
Jean-Marc Vanel
Déductions SARL - Consulting, services, training,
Rule-based programming, Semantic Web
http://deductions-software.com/
+33 (0)6 89 16 29 52
Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui

Support for non-string plain literals?

[Jindřich Mynarz]

Hi,

can I use Jena to create non-string plain literals, such as integers?

ResourceFactory.createLiteral() (
https://jena.apache.org/documentation/javadoc/jena/org/apache/jena/rdf/model/ResourceFactory.html#createPlainLiteral-java.lang.String-)
is available only for strings.

- Jindřich

-- 
Jindřich Mynarz
http://mynarz.net/#jindrich