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Posted to users@jena.apache.org by Maria Jackson <ma...@gmail.com> on 2015/03/10 07:20:56 UTC
What is the difference between Jena-ARQ and Jena-TDB
The website defines Jena-TDB as a pure Java persistence layer for large
graphs, high performance applications and embedded use. And Jena-ARQ as ARQ
is a query engine for Jena that supports the SPARQL RDF Query language.
SPARQL is the query language developed by the W3C RDF Data Access Working
Group.
So do Jena-TDB and Jena-ARQ provide the same set of functionalities with
the difference that Jena-TDB in addition provides persistence. Or are they
different and provide different support and query mechanisms for SPARQL 1.1
queries.
I am unable to understand the difference between Jena-ARQ and Jena-TDB. Can
someone please explain this a little.
Re: What is the difference between Jena-ARQ and Jena-TDB
Posted by Rob Vesse <rv...@dotnetrdf.org>.
Yes TDB provides full SPARQL 1.1 support
ARQ is the query engine which is fully SPARQL 1.1 compliant
TDB is a persistence layer, it uses the ARQ query engine to perform the
actual queries (though it extends the basic ARQ engine with some TDB
specific optimisations to improve performance)
Rob
On 10/03/2015 07:16, "Rose Beck" <ro...@gmail.com> wrote:
>Ok actually I want to run SPARQL 1.1 queries and I want a persistent
>on-disk database for it which ARQ does not provide. Since TDB provides
>a persistence layer so I am thinking of using TDB for my purpose, but
>I am confused does TDB support all SPARQL 1.1 features. I think it
>does, but just to verify?
>
>On Tue, Mar 10, 2015 at 12:15 PM, Jean-Marc Vanel
><je...@gmail.com> wrote:
>> Basically ARQ provides support for parsing SPARQL, and SPARQL HTTP
>>client
>> feature.
>> Depending on ARQ, TDB is an RDF database with SPARQL as the query
>>language.
>> And both ARQ and TDB depend on Jena core, with provides a API for RDF
>>and
>> an in-memory RDF database.
>>
>> So Jena-TDB and Jena-ARQ do not provide the same set of functionalities
>>.
>>
>> 2015-03-10 7:20 GMT+01:00 Maria Jackson <ma...@gmail.com>:
>>
>>> The website defines Jena-TDB as a pure Java persistence layer for large
>>> graphs, high performance applications and embedded use. And Jena-ARQ
>>>as ARQ
>>> is a query engine for Jena that supports the SPARQL RDF Query language.
>>> SPARQL is the query language developed by the W3C RDF Data Access
>>>Working
>>> Group.
>>>
>>> So do Jena-TDB and Jena-ARQ provide the same set of functionalities
>>>with
>>> the difference that Jena-TDB in addition provides persistence. Or are
>>>they
>>> different and provide different support and query mechanisms for
>>>SPARQL 1.1
>>> queries.
>>>
>>> I am unable to understand the difference between Jena-ARQ and
>>>Jena-TDB. Can
>>> someone please explain this a little.
>>>
>>
>>
>>
>> --
>> 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
>
>
>
>--
>With Warm Regards,
>Rose
Re: What is the difference between Jena-ARQ and Jena-TDB
Posted by Jean-Marc Vanel <je...@gmail.com>.
Rose and Maria,
First on the practical point of view, if you donwload TDB (actually called
*apache-jena*) you have all dependencies including ARQ.
Then regarding SPARQL 1.1 support, it's true that TDB page does not say
clearly that it supports SPARQL 1.1 , but the Fuseki page says so :
http://jena.apache.org/documentation/serving_data/
and since "*Fuseki includes a built-in version of TDB*" , obviously TDB
also supports SPARQL 1.1 , not as an HTTP SPARQL server, but through its
API and command line tools.
Hope it helps .
2015-03-10 8:16 GMT+01:00 Rose Beck <ro...@gmail.com>:
> Ok actually I want to run SPARQL 1.1 queries and I want a persistent
> on-disk database for it which ARQ does not provide. Since TDB provides
> a persistence layer so I am thinking of using TDB for my purpose, but
> I am confused does TDB support all SPARQL 1.1 features. I think it
> does, but just to verify?
>
> On Tue, Mar 10, 2015 at 12:15 PM, Jean-Marc Vanel
> <je...@gmail.com> wrote:
> > Basically ARQ provides support for parsing SPARQL, and SPARQL HTTP client
> > feature.
> > Depending on ARQ, TDB is an RDF database with SPARQL as the query
> language.
> > And both ARQ and TDB depend on Jena core, with provides a API for RDF and
> > an in-memory RDF database.
> >
> > So Jena-TDB and Jena-ARQ do not provide the same set of functionalities .
> >
> > 2015-03-10 7:20 GMT+01:00 Maria Jackson <ma...@gmail.com>:
> >
> >> The website defines Jena-TDB as a pure Java persistence layer for large
> >> graphs, high performance applications and embedded use. And Jena-ARQ as
> ARQ
> >> is a query engine for Jena that supports the SPARQL RDF Query language.
> >> SPARQL is the query language developed by the W3C RDF Data Access
> Working
> >> Group.
> >>
> >> So do Jena-TDB and Jena-ARQ provide the same set of functionalities with
> >> the difference that Jena-TDB in addition provides persistence. Or are
> they
> >> different and provide different support and query mechanisms for SPARQL
> 1.1
> >> queries.
> >>
> >> I am unable to understand the difference between Jena-ARQ and Jena-TDB.
> Can
> >> someone please explain this a little.
> >>
> >
> >
> >
> > --
> > 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
>
>
>
> --
> With Warm Regards,
> Rose
>
--
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: What is the difference between Jena-ARQ and Jena-TDB
Posted by Rose Beck <ro...@gmail.com>.
Ok actually I want to run SPARQL 1.1 queries and I want a persistent
on-disk database for it which ARQ does not provide. Since TDB provides
a persistence layer so I am thinking of using TDB for my purpose, but
I am confused does TDB support all SPARQL 1.1 features. I think it
does, but just to verify?
On Tue, Mar 10, 2015 at 12:15 PM, Jean-Marc Vanel
<je...@gmail.com> wrote:
> Basically ARQ provides support for parsing SPARQL, and SPARQL HTTP client
> feature.
> Depending on ARQ, TDB is an RDF database with SPARQL as the query language.
> And both ARQ and TDB depend on Jena core, with provides a API for RDF and
> an in-memory RDF database.
>
> So Jena-TDB and Jena-ARQ do not provide the same set of functionalities .
>
> 2015-03-10 7:20 GMT+01:00 Maria Jackson <ma...@gmail.com>:
>
>> The website defines Jena-TDB as a pure Java persistence layer for large
>> graphs, high performance applications and embedded use. And Jena-ARQ as ARQ
>> is a query engine for Jena that supports the SPARQL RDF Query language.
>> SPARQL is the query language developed by the W3C RDF Data Access Working
>> Group.
>>
>> So do Jena-TDB and Jena-ARQ provide the same set of functionalities with
>> the difference that Jena-TDB in addition provides persistence. Or are they
>> different and provide different support and query mechanisms for SPARQL 1.1
>> queries.
>>
>> I am unable to understand the difference between Jena-ARQ and Jena-TDB. Can
>> someone please explain this a little.
>>
>
>
>
> --
> 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
--
With Warm Regards,
Rose
Re: What is the difference between Jena-ARQ and Jena-TDB
Posted by Jean-Marc Vanel <je...@gmail.com>.
Basically ARQ provides support for parsing SPARQL, and SPARQL HTTP client
feature.
Depending on ARQ, TDB is an RDF database with SPARQL as the query language.
And both ARQ and TDB depend on Jena core, with provides a API for RDF and
an in-memory RDF database.
So Jena-TDB and Jena-ARQ do not provide the same set of functionalities .
2015-03-10 7:20 GMT+01:00 Maria Jackson <ma...@gmail.com>:
> The website defines Jena-TDB as a pure Java persistence layer for large
> graphs, high performance applications and embedded use. And Jena-ARQ as ARQ
> is a query engine for Jena that supports the SPARQL RDF Query language.
> SPARQL is the query language developed by the W3C RDF Data Access Working
> Group.
>
> So do Jena-TDB and Jena-ARQ provide the same set of functionalities with
> the difference that Jena-TDB in addition provides persistence. Or are they
> different and provide different support and query mechanisms for SPARQL 1.1
> queries.
>
> I am unable to understand the difference between Jena-ARQ and Jena-TDB. Can
> someone please explain this a little.
>
--
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