TopBraid + Sesame2 + BigOWLIMJ

[Alexander Degenstein]

Hi all,

currently I try to get TopBraid work together with BigOWLIM. I use
Sesame to access BigOWLIM and it works fine. I followed the
instructions for installing BigOWLIM and Sesame to get them run
together. I can import data via Sesame (OpenRDF Workbench running on a
Tomcat) to BigOWLIM. I also can export this data from the Sesame
repository to the TopBraid Composer like described in the TopBraid
Composer Standard Edition help (TopBraid Composer > Advanced Topics >
Working with RDF Databases). But when I create subclasses or instances
of classes within TopBraid, they are not written to the Sesame
Repository. I can't find any other hint in the documentation. Was
anyone ever successful here?

Regards
Alex

[Scott Henninger]

Alex, it seems the likely failure is between Sesame and BigOWLIM. We
don't support that. For supported data back-ends, see our Supported
Applications page at http://www.topquadrant.com/products/supportedPlatforms3.4.html

-- Scott

On Mar 23, 9:36 am, Alexander Degenstein <a.degenst...@googlemail.com>
wrote:

[Alexander Degenstein]

OK, thank you for the response.

I tried to reinstall the tools to fix possible configuration failures,
but without success. As I understand, Sesame 2 is "just" an API (plus
a lot of additional features ;) ) to access triple stores like
BigOWLIM, isn't it? According to what ontotext sais in the
documentation, BigOWLIM works well with Sesame 2 and is designed for
Sesame 2. So, if TopBraid works with Sesame 2 it should work with
every repository that is accessed by Sesame 2, should't it? Do I
understand this wrong? Sometimes it's more complex like it looks;).

I will ask ontotext, whether they have some idea.

On 23 Mrz., 16:07, Scott Henninger <shennin...@topquadrant.com> wrote:
> Alex, it seems the likely failure is between Sesame and BigOWLIM.  We
> don't support that.  For supported data back-ends, see our Supported

> Applications page athttp://www.topquadrant.com/products/supportedPlatforms3.4.html

[Alexander Degenstein]

Hey,

I tried for hours to get TopBraid work together with Sesame2. I tried
all types of repositories supported by Sesame (native java, in memory,
remote) and tried nearly all possibel combinations in the connection
wizard for Sesame2 (with and without named graph respectively
context). It's always possible to fetch the graph and I can see them.
But I couldn't get it to work, that changes in TopBraid are commited
to Sesame2 :(. Is there maybe some incompatibility with the current
version of Sesame2? I use Sesame 2.3.2.

Regards
Alex

[Atanas Kiryakov]

Hi Alex

I can confirm that Sesame 2 is the main avenue for using OWLIM and BigOWLIM in particular, so, it is
unlikely that there are problems related to this integration

What I should note however is that since v.3.4, Nov'10, BigOWLIM is also well integrated with Jena.
Even for some tasks the performance through Jena is better. You can look at these two pages:
http://www.ontotext.com/owlim/access_methods.html
http://www.ontotext.com/owlim/owlim-jena-performance.html

We are also just about to release BigOWLIM v3.5 where really all advanced features (e.g. geo-spatial
indices, etc.) are available through Jena also

Thus, it could be interesting for you to try to integrate BigOWLIM to TBC through Jena, instead of
Sesame. One benefit of using BigOWLIM through Jena is full SPARQL 1.1 support (aggregates, updates,
etc.) which is still not available through Sesame

Cheers
Naso

p.s.: I am CC-ing Barry Bishop, the product manager of OWLIM, who may want to add/comment also

--
----------------------------------------------------------
Atanas Kiryakov
Executive Director
Ontotext AD, http://www.ontotext.com
Phone: (+359 2) 974 61 44; Fax: 975 3226
----------------------------------------------------------

[Alexander Degenstein]

Hello Atana,

thank you for the reply and the Jena hint.

I already evaluated the TopBraid, Jena, BigOWLIM integration. But it
seems, that it also doesn't work. TopBraid "only" supports direct
access to Jena TDB files. But we will definitly need some kind of
"remote" editing (Sesame2 server or Jena Joseki server) supported by
TopBraid.

It would be a realy great feature of TopBraid Composer if it would
work :(. But nevertheless, TopBraid and BigOwlim are great.

I made my "own" small benchmark for BigOWLIM and its extreme fast
compared to other triplestores, good work ;).