Some potentially interesting projects:
https://sansa-stack.net/
https://github.com/rdfhdt/hdt-java
RDF HDT has a Jena integration component.
Adam
On Thu, Apr 14, 2022, 4:47 PM Martynas Jusevičius
wrote:
> There was a related thread
> https://www.mail-archive.com/users@jena.apache.org/msg1857
It's especially impressive because we are thriving with new contributions.
Go us!
Adam
On Mon, Apr 18, 2022, 3:51 PM Dan Brickley wrote:
> On Mon, 18 Apr 2022 at 17:39, Andy Seaborne wrote:
>
> > Today is the 10th anniversary of Apache Jena as a Top Level Project of
> > the Apache Software Fou
I'm afraid that doesn't work because I'm interested in proxying the entire
application, not a single dataset. I want to expose the whole UI, admin,
SPARQL editor and all.
I've tried proxying as you describe using --localhost, but the static
resources and JavaScript that compose the UI don't come t
I'm probably missing something obvious, because I haven't looked at Fuseki
in quite some time. I cannot seem to find any way to set the servlet
context path for Fuseki in its standalone (non-WAR) incarnation, which I
want to do in order to get it proxied behind httpd.
Is there a setting here, or w
On Tue, Dec 7, 2021, 1:55 PM Matt Whitby wrote:
I dare say running an lcase against each field doesn't help matters, but with
no other way of doing a case-insensitive search (well, Regex - but who likes
Regex?) I'm not sure.
On this point alone, if it does turn out that string processing is wha
There are a number of points here, but I'm only qualified to speak to one
of them. :)
On Sun, Nov 21, 2021, 5:51 PM Jakub Jałowiec
wrote:
> Hi Andy,
> sorry for late reply.
>
Neither the in-memory nor TDB data storage is
> > designed for that. Mid-scale LPG systems are, typically (adjacency
The instructions for how to convert a given JSON-LD document from JSON into
RDF triples are found in a special section of JSON called the "context".
That context can be either included directly in the file or imported from
an external location, as you have discovered. It's convenient to do the
latt
No, Simon, what Lorenz is saying is that you can precompute the inferences
and store them with the data. This will pay the cost of inference up front
and prevent you from paying it at the time of first query. You can do this
by adding all the inferred statements to your dataset or model before
quer
If you are interested ultimately in how the data looks (syntax) and if you
can use JSON-LD to transport the data, there are some features in JSON-LD
1.1 that might help:
https://www.w3.org/TR/json-ld11/#aliasing-keywords
https://www.w3.org/TR/json-ld11/#scoped-contexts
Adam
On Thu, Apr 29, 202
That picture did not come through, and iirc this list does not accept
pictures anyway.
Please show us a complete example with sample data, the procedure by which
you are uploading it, and the exact response.
Adam
On Wed, Apr 15, 2020, 10:31 AM Luís Moreira de Sousa
wrote:
> Hi all,
>
> please
I'm not quite sure what you mean by "Software Site". Are you looking for a
place from which to download that artifact?
If so, I don't think we currently provide a direct download of the
jena-osgi module. We provide it via Maven repository publication. Are you
using a dependency manager as part of
I'm a little confused. You say you are trying to use Jena 3, but that
stacktrace features com.hp.hpl.jena.sdb package names, which are from Jena 2.
Which one is executing this code? Are you bringing both on to the classpath
together somehow?
ajs6f
> On Jan 15, 2020, at 7:09 AM, Ashwa
Good luck! Please do let us know how you get on.
ajs6f
> On Jan 9, 2020, at 2:16 AM, Luis Enrique Ramos García
> wrote:
>
> Dear friends,
>
> given that my larger experience is with OWL; swrl, and swqrl, that was my
> first option, my challenge is to get the job done, t
experience has been
with OWL?
ajs6f
> On Jan 8, 2020, at 5:14 AM, Luis Enrique Ramos García
> wrote:
>
> Dear friends,
>
> Thanks so much for your quick answer,
>
> At first about our use case, I estimate that we will be working with around
> 100 millions tri
I think that the issue is that Shiro, out of the box, does not address matching
by query param. You may wish to configure RegExPatternMatcher, which would be
more flexible.
https://shiro.apache.org/static/1.4.2/apidocs/org/apache/shiro/util/RegExPatternMatcher.html
ajs6f
> On Nov 22, 2019,
This isn't really a question about Jena, it's a question about Shiro. Have you
tried asking that community?
ajs6f
> On Nov 22, 2019, at 11:41 AM, Jean-Claude Moissinac
> wrote:
>
> Dear Marco,
>
> I think my previous reading of this documentation was right.
&g
You would provide both datasets at Fuseki and then us a reverse proxy (like
Varnish) to switch between the two endpoints. Anything more specific would
depend on the reverse proxy you select.
ajs6f
> On Nov 22, 2019, at 1:06 AM, Martynas Jusevičius
> wrote:
>
> Varnish is a r
Why wouldn't you just load these as two separate datasets available at
different endpoints in one instance of Fuseki? Why try to fool Fuseki into
thinking that two datasets are really one?
ajs6f
> On Nov 21, 2019, at 6:57 AM, Amandeep Srivastava
> wrote:
>
> Hi,
>
>
> On Oct 24, 2019, at 7:17 AM, Andy Seaborne wrote:
>
> On 23/10/2019 15:31, ajs6f wrote:
>> Hi Dick!
>> I'm afraid the answer for TDB2 and TIM is no, not out of the box. Both use
>> MVCC techniques, not buffering operations. Andy can tell you about TDB1.
t TIM into the design it now has (multiple MVCC indexes
connected transactionally) I did another design that _does_ use buffering of
operations. Since we didn't go with it, we cut it out of the codebase, but the
history is there if you find it useful.
ajs6f
> On Oct 23, 2019, at
So noted on that ticket, thank you, Barry!
ajs6f
> On Sep 16, 2019, at 10:41 AM, Nouwt, B. (Barry)
> wrote:
>
> Hi ajs6f, I think it is already filed under JENA-1667. My use case to
> reproduce it can be found on github: https://github.com/barrynl/jena-example
>
Would you be able to file a ticket (or two) recording those more general
issues? That would be really helpful so that we don't lose track of them.
ajs6f
> On Sep 11, 2019, at 8:01 AM, Nouwt, B. (Barry)
> wrote:
>
> Hi all, just a quick status update about my specific
.
which doesn't imply a good fit for your case. If possible you might want to
think about working from something like Turtle, which can be concise for the
case of many triples with the same subject and predicate but different objects:
https://www.w3.org/TR/turtle/#h3_object-lists
ajs6f
In what format are these RDF files?
ajs6f
> On Aug 6, 2019, at 10:05 AM, Yasunori Yamamoto wrote:
>
> Hello, I'm trying to learn how to parse RDF data archived in a tar.gz
> file (e.g., rdfdatasets.tar.gz that contains a set of RDF data files)
> within my Java program.
ple files in that use, you might try splitting
the file and processing it in pieces.
Can you tell us a bit more about your use case? There might be another approach
someone can recommend.
ajs6f
> On Jul 19, 2019, at 8:18 AM, Ankit Dangi wrote:
>
> Hi,
>
> I am using Apa
lying graphs or datasetgraphs, a little bit like the way TIM keeps a lock
in a DatasetGraph to hold while opening transactions against its underlying
indexes.
Is this worth a ticket? (Recording a desire to have unions that respond fully
to read transactions.)
ajs6f
> On Jul 18, 2019, at 6:53
s this, I
suspect it might be the best immediate choice.
ajs6f
> On Jul 18, 2019, at 8:08 AM, Scarlet Remilia
> wrote:
>
> Thank you for reply!
>
>
>
> The server storage is HDD on local with RAID 10.
>
> CPU is 4x 14 cores with 28 threads but only one core i
Filed as https://issues.apache.org/jira/browse/JENA-1721.
ajs6f
> On Jun 12, 2019, at 6:49 PM, Andy Seaborne wrote:
>
>
>
> On 12/06/2019 20:07, Laura Morales wrote:
>>>> The reason why I would like to be able to do this, instead of merging one
>>>>
elAssembler and you might be able to
cobble something together from them.
ajs6f
> On Jun 12, 2019, at 8:10 AM, Laura Morales wrote:
>
> Basically I have a Fuseki server with 1 TDB dataset containing multiple
> graphs, like this (stripped down configuration):
>
>
>
will have changed the semantics
of your data.
You may wish to consider a further processing step.
ajs6f
> On Jun 12, 2019, at 8:21 AM, Martynas Jusevičius
> wrote:
>
> AFAIK there are no "plain numeric literals". That's just syntactic
> sugar for numbers in Turt
Do you mean you see Fuseki but it has no data in it or that you see nothing?
ajs6f
> On Jun 11, 2019, at 8:54 AM, Allan Kamau wrote:
>
> I have deployed fuseki by copying the fuseki.war file to the webapps
> directory of my catalina installation.
> It seems when I connect to
A union graph built up in that way won't pull in a different way from disk to
memory than using just the on-disk resource would. It will find triples in one
graph and in the other and merge them; it will not set up any new data
structures holding triples on its own account.
ajs6f
> O
410d02df080cca92f324ab@%3Cusers.jena.apache.org%3E>
where Chris Dollin gives a bit of history. Perhaps some of the committers with
more experience could describe it better? Do we have good examples of that
machinery in use?
ajs6f
> On Apr 3, 2019, at 3:32 AM, Thomas Francart wrote:
>
> Hell
.
You are noticing that when you find the constructor odd and hard to fill;
that's in part because it mixes Jena's API (Resource, Statement, Model, etc.)
with its SPI (Node, Triple, Graph, etc.).
Could you tell us a little more about what you are doing? Why do you want to
extend Resourc
I'm not sure what you mean by "editors" or "the dev group", but I am one
person. Apache committer email addresses are not shared.
ajs6f
> On Mar 13, 2019, at 7:23 AM, Marco Neumann wrote:
>
> just for reference is the email "aj...@apache.org" alwa
I'm not at all sure where the idea of a "silent consensus" came from. Certainly
there _is_ interest in SHACL (as there should be), but that's all I can see.
ajs6f
> On Mar 13, 2019, at 7:10 AM, Dave Reynolds wrote:
>
> Hi Marco,
>
> Not a "consensus&qu
Have you examined, as the log suggests, the appropriate container log file?
ajs6f
> On Feb 18, 2019, at 10:36 AM, Sorin Gheorghiu
> wrote:
>
> Hi,
>
> Fuseki 3.10 fails to start with Tomcat, the error is related to
> openIndexWriter, but this is too few information for
salt.
ajs6f
> On Feb 21, 2019, at 9:02 AM, Mikael Pesonen
> wrote:
>
>
> Reason I'm asking this is that now, with external doxument index, we can't do
> any paging which results very slow and heavy queries on document index. We
> have to read all results from exter
TDB's design is given in official documentation here:
https://jena.apache.org/documentation/tdb/architecture.html
ajs6f
> On Feb 22, 2019, at 5:02 AM, Ekaterina Danilova
> wrote:
>
> Thank you, it was exactly what I needed. It is still nice to hear what
> others think a
Hello, Sorin, thank you for this contribution!
Osma and Chris, you guys know the most about the text index by far-- would this
make sense as part of the documentation for that module?
ajs6f
> On Feb 5, 2019, at 7:07 AM, Sorin Gheorghiu
> wrote:
>
> Hi,
>
> it is a great
Are you asking how to use an extant Lucene index with your text documents in it
for Jena's text index as well?
ajs6f
> On Feb 14, 2019, at 6:23 AM, Mikael Pesonen
> wrote:
>
>
> Hi,
>
> Our system stores documents with separate rest API and document id's are
If you are using the same identifiers in each source, then when you merge them
the common identifiers will immediately form links.
ajs6f
> On Feb 18, 2019, at 7:24 AM, elio hbeich wrote:
>
> Can you explain more this part:
> '' If you want to link the two, simply add
e you using and how? What queries
are you running and how? There are lots of opportunities for optimization when
using a complex framework like Jena.
ajs6f
> On Feb 15, 2019, at 8:06 AM, Ekaterina Danilova
> wrote:
>
>>
>> No , both better in performance, and in the
I'm not quite sure what you are asking about here: Do you mean to query both a
new graph and the main dataset at the same time, and to do that without using
anything other than SPARQL, and without loading the new graph into your dataset?
ajs6f
> On Feb 12, 2019, at 10:58 AM, Walker,
Andy, does that go by the usual code paths in ARQ?
If the answer to the above question is yes, then it's an Apache Commons HTTP
client that is the underlying machine here. You can adjust it with methods in
Jena's class HttpOp in jena-arq.
ajs6f
> On Feb 10, 2019, at 12:56 PM,
> On Jan 31, 2019, at 1:23 PM, Andy Seaborne wrote:
>
> On 31/01/2019 17:57, ajs6f wrote:
>>> 2/ It is not possible in an assembler/Fuseki configuration file, to create
>>> a new named graph and have a another inference graph put around that new
>>> grap
you know when to apply or re-apply the
filtering/matching?) and might not be worth doing on those grounds alone, but I
might file a ticket just to not forget the possibility.
ajs6f
> On Jan 31, 2019, at 12:41 PM, Andy Seaborne wrote:
>
> Hi Pierre,
>
> A few points to start with:
>
magine that's what you're looking for.
ajs6f
> On Jan 31, 2019, at 8:09 AM, vincent ventresque
> wrote:
>
> It seems that the problem is completely independent from s-get (see these
> results with curl below). So I think there's a default setting somewhere in
> Fuse
ain tests) but it should normally build
fine. Can you tell us a little about _how_ it fails?
ajs6f
> On Jan 18, 2019, at 1:33 PM, Chris Wood wrote:
>
> Hi Andy,
>
> Thanks for the link.
>
> I've tried a couple of things:
> - the prebuilt executables don't have
w the text-indexing machinery much
much better than do I.)
ajs6f
> On Jan 18, 2019, at 11:32 AM, Vincent Ventresque
> wrote:
>
> Hi Chris,
>
> I'd like to add sthg about the documentation page : it's a bit laconic, and I
> spent a few hours to understand that
Merged, thanks very much!
(It won't show up at the public site until we rebuild that site.)
ajs6f
> On Jan 17, 2019, at 8:57 AM, Svensson, Lars wrote:
>
> On Wednesday, January 16, 2019 5:36 PM, ajs6f [mailto:aj...@apache.org] wrote:
>
>> In the top right corner of
In the top right corner of any Jena documentation webpage, you should see an
"Improve This Page" link, which will allow you to submit an edit to improve
that page. Please do, and thanks in advance!
ajs6f
> On Jan 16, 2019, at 11:12 AM, Svensson, Lars wrote:
>
> Thanks ajs6
You should be able to use the --graph option with tdb2.tdbloader.
In general, it's useful to check the options for the Jena CLI utilities.
There's a lot of functionality there.
ajs6f
> On Jan 16, 2019, at 11:02 AM, Svensson, Lars wrote:
>
> OK, thank you. I think I got
Yes, the approach that Andy suggested in an email earlier today (use _one_ TDB2
instance, load your graphs into different named graphs in it, and enable the
"default graph = union graph" option) is the right choice.
ajs6f
> On Jan 16, 2019, at 10:50 AM, Svensson, Lars wrote:
>
r graph from each of these datasets to
insert into another?
Perhaps you can tell us a bit more about what you are trying to accomplish
here, and we can help you find out how to do that.
ajs6f
> On Jan 16, 2019, at 4:25 AM, Svensson, Lars wrote:
>
> Greetings,
>
> I have several
I have no useful general information about the reasoning framework, but I am
copying this over to dev@. Discussions of how to extend Jena definitely have a
place there.
ajs6f
> On Jan 14, 2019, at 6:40 AM, Nouwt, B. (Barry)
> wrote:
>
> Hi all, I want to investigate the inner
The module was retired, as Bruno explained, for lack of any maintainer. We
can't keep code in the codebase when no one will take responsibility for it. Do
you perchance have some time available to commit to maintaining the jena-csv
module?
ajs6f
> On Jan 14, 2019, at 10:17 AM, Piot
Please show the code you are actually using to make requests.
ajs6f
> On Jan 14, 2019, at 9:06 AM, Kevin Dreßler wrote:
>
> Hello,
>
> for unit testing I need to mock up a HTTP server delivering RDF/XML per
> content negotiation (Accept: application/rdf+xml). For a HTTP
hinery, so to speak.
As for your use case, perhaps you could use a rule to do this? Again, I don't
know a lot about this end of Jena, but perhaps you could write a custom
built-in function for the rules system [1] .
ajs6f
[1] https://jena.apache.org/documentation/inference/index.html#built
large amount of work to offer custom endpoints for Fuseki. It
might be possible to offer an endpoint to load a new schema or do some other
coarser manipulation to get what you need done.
ajs6f
> On Dec 6, 2018, at 9:55 AM, Claude Warren wrote:
>
> Somehow I missed this response.
>
&g
h` methods. How to combine these?
It's a good general problem. I can imagine other kinds of indexes that people
might want to use (image indexes, timeseries representations) and our basic SPI
should be able to support using multiple kinds of special indexes...
ajs6f
> On Dec 23, 2018
to get to those that won't get thrown away. You can do that by
confining the scope of the filter to a graph, as you did, but you can also do
it by introducing a scope for the purpose, as Andy showed.
ajs6f
> On Dec 17, 2018, at 9:53 AM, Vincent Ventresque
> wrote:
>
> > $word
it I'm not sure where it would best go, but it might
be very helpful to users who can take advantage of it.
ajs6f
> On Dec 16, 2018, at 6:11 AM, Siddhesh Rane wrote:
>
> In-memory database has following limitations :
>
> 1) Time to create the database. Not a problem if
e and I don't know what the
intervening years have done to make it more or less feasible. There have been
many changes to jena-text in that time and the new spatial module is a whole
new story. I'd put a link here but searching lists.apache.org hasn't brought it
up for me.
ajs6f
What is the advantage to doing that as opposed to using Jena's built-in
in-memory dataset?
ajs6f
> On Dec 15, 2018, at 3:04 AM, Siddhesh Rane wrote:
>
> Bring the entire database in RAM.
> Use "vmtouch "
> Get vmtouch from https://hoytech.com/vmtouch/
>
>
Let's slow down here a bit.
We can't give you any reasonable advice until you tell us _much_ more about
your work. What is the data like? What kinds of queries are you doing? How are
you running them? What do you expect to happen?
Please give us a great deal more context.
ajs6f
useki to gather, execute, and
potentially rollback requests.
Can you say a little more about your use case? That might help us give you
better advice.
ajs6f
> On Dec 3, 2018, at 10:20 AM, Brad Stallion
> wrote:
>
> Hi All,is it possible to work with transactions (commit/rollback) u
> On Nov 30, 2018, at 10:24 AM, Andy Seaborne wrote:
> On 29/11/2018 15:48, ajs6f wrote:
>> I'm not Martynas, so you didn't misname anyone that I saw.
>> JSON-LD can certainly help with this: any time you have JSON, and you wish
>> it were RDF, JSON-LD is the
to segregate your asserted and
inferred triples in separate graphs within the dataset? If so, perhaps you
could use SPARQL Graph Store Protocol [1] to download only those graphs you
want to backup.
ajs6f
[1] https://www.w3.org/TR/sparql11-http-rdf-update
> On Nov 30, 2018, at 6:21 AM, B
I can't speak precisely to your error, but have you tried DROP GRAPH [1]? Might
be a useful workaround for the moment.
ajs6f
[1] https://www.w3.org/TR/sparql11-update/#drop
> On Nov 29, 2018, at 10:07 AM, Brad Stallion
> wrote:
>
> Hi All,
> I'm using Fuseki 3.9.
SON
(as JSON) as need be to clean the data, and then apply a context and let Jena
read the RDF directly. If the data is already in a form that is close to what
you need, the first phase might be short or absent. If the data is wacky, the
gains from introducing JSON-LD might be very small.
ajs6f
Jena tooling
needed... is that not possible (or optimal) for some reason? If it's related to
Jena, we can talk about it here, and if it's related to JSON-LD, I'd be very
happy to take your concern to the WG.
ajs6f
> On Nov 29, 2018, at 7:40 AM, Marco Neumann wrote:
>
#x27;s CLI machinery at all.
ajs6f
> On Nov 11, 2018, at 4:55 PM, Laura Morales wrote:
>
> I meant the output of the command
>
>$ tdb2.tdbupdate --help
>
>
>
>
>
> Sent: Sunday, November 11, 2018 at 10:38 PM
> From: "Andy Seaborne"
This list doesn't accept attachments. You can cut-and-paste your material (if
it's reasonably short) or use a service like gist or pastebin to make them
available.
ajs6f
> On Nov 12, 2018, at 2:46 PM, Luigi Asprino wrote:
>
> Hi,
> thanks for the quick reply.
>
itself.
ajs6f
On Mon, Nov 12, 2018, 2:34 PM Luigi Asprino Hi,
>
> I have the following problem in querying a dataset created on a Fuseki2
> server.
> I have downloaded Apache Jena Fuseki 3.9.0 from this page [1], then I have
> created a dataset and uploaded some RDF files (I u
ht be better to use TDB1. YMMV.
ajs6f
> On Nov 11, 2018, at 11:06 AM, Laura Morales wrote:
>
> To be completely honest, simply because TDB2 is advertised as "next
> generation" storage for jena so I prefer to stick with the newer version and
> try to avoid any TDB p
Then let me ask a different question-- is there a reason in particular that you
are using TDB2? TDB1 doesn't have the monotonically-increasing size issue, and
you could use the well-defined and standardized SPARQL Graph Store protocol [1]
to insert and delete graphs.
ajs6f
[1] https://w
I'll let Andy comment on the TDB2 question, but as for compact read-only
storage, you may wish to experiment with HDT [1][2]. It is not supported by the
Jena project, but some Jena users have used it with success.
ajs6f
[1] www.rdfhdt.org
[2] https://github.com/rdfhdt/hdt-java/tree/maste
hink
that's correct. Here is an example that might be more on point:
https://github.com/apache/jena/blob/master/jena-db/jena-tdb2/testing/Assembler/tdb-named-graph-2.ttl
ajs6f
> On Nov 11, 2018, at 10:23 AM, Laura Morales wrote:
>
> More or less, yes.
> I want 2 separate TDB2 d
I'm not quite sure what you're trying to do here-- are you trying to extract
one named graph from one TDB2 database, another named graph from another TDB2
database, and present them via Fuseki as a single dataset?
ajs6f
> On Nov 11, 2018, at 9:49 AM, Laura Morales wrote:
>
Yes, certainly.
Depending on all kinds of things, it may or may not be more performant, but it
should certainly work.
ajs6f
> On Nov 10, 2018, at 4:42 PM, Laura Morales wrote:
>
> I just have a script that runs a few 100s queries one after the other in
> sequence. I was only won
of the data and queries.
It is very hard to give general advice about performance (especially concurrent
performance). It much easier in a specific concrete context.
What can be said is that certainly the CLI tools can be scripted for batch
work.
ajs6f
> On Nov 10, 2018, at 4:28 PM, La
Please file a ticket for this, with a file that shows the problem and a
complete invocation that fails.
ajs6f
> On Nov 10, 2018, at 10:04 AM, Martynas Jusevičius
> wrote:
>
> Yes, .as I wrote, without --syntax and with .trix extension it works.
> On Sat, Nov 10, 2018 at 3:51
Just as an experiment, can you verify that changing the extensions to .trix and
removing the --syntax flag works?
ajs6f
> On Nov 10, 2018, at 9:49 AM, Martynas Jusevičius
> wrote:
>
> There are some issues with non-canonical XMLLiterals, but in principle
> the files pars
I'd have to go check the code, but Martynas, possibly the file extensions are
tripping you up?
ajs6f
> On Nov 10, 2018, at 9:10 AM, Laura Morales wrote:
>
> Using the TriX file here
> http://www.hpl.hp.com/techreports/2004/HPL-2004-56.pdf on page 3 as an
> example it
Are you sending this to a Fuseki endpoint? It does not appear so.
ajs6f
> On Nov 9, 2018, at 9:04 AM, Laura Morales wrote:
>
> How to use Fuseki SOH with HTTPS?
>
> $ ./soh query --service= --query=
>
>
>
> 400 The plain HTTP req
tic lifting": adding semantic
information to data that lacks it (JSON => JSON-LD). Of course, it's also meant
to function as an RDF serialization, but if your first interest is moving from
something that isn't JSON to RDF, you may very well find other tools to be more
natural a
question and we can give you a more useful answer...
ajs6f
> On Oct 30, 2018, at 12:02 PM, ashutosh mehta wrote:
>
> I meant TDB2.
> When a sparql query is made on the ontology, does only a particular node is
> hit or doea it traverse the graph from the beginning?
>
>
>
head.
For more general forms of inference, you might need other tools, potentially up
to Jena's rules system. And as Martynas implies, both techniques can be seen as
letting you write queries over an enhanced graph or dataset. It's up to you
whether to persist those "new" triples,
xt or spatial indexing you may have created by using those Jena
components.
ajs6f
> On Oct 30, 2018, at 9:36 AM, ashutosh mehta wrote:
>
> Hi,
> Is there any documentation regarding TDB structure. How does it store owl
> files(ontology)?
>
> How does indexing happen
routed through a cache that prevents
duplication? I believe Andy deployed a similar technique for some of the TDB
loading code and saw great improvement therefrom.
ajs6f
[1] https://jena.apache.org/documentation/rdf/datasets.html
[2] https://en.wikipedia.org/wiki/Persistent_data_structure
&g
You have given us almost nothing to go on. Please provide information about
your data and the queries you are running, and keep in mind that we cannot help
you optimize your client software.
http://jena.apache.org/help_and_support/index.html
https://stackoverflow.com/help/mcve
ajs6f
> On
That seems to be exactly the same problem you reported on this list a few days
ago:
https://lists.apache.org/thread.html/c5e108303b59feb799abfdcf7bf0c45513ef171e4093c48c56f9d007@%3Cusers.jena.apache.org%3E
and the advice Andy gave you then is still good.
ajs6f
> On Sep 26, 2018, at 11:56
Is the file you are trying to read Turtle, as you have declared in your code?
The fact that it begins with "rdf:RDF" makes that unlikely. That's certainly
not Turtle. It looks like RDF/XML.
ajs6f
> On Sep 26, 2018, at 11:47 AM, elio hbeich wrote:
>
> I am trying the
nk of a
reason they would.
It's possible that someone out there in the community has written one, or you
could try implementing DatasetGraph yourself, perhaps reusing some other
implementation for part of the work.
ajs6f
> On Sep 18, 2018, at 4:00 PM, thomas lörtsch wrote:
>
&
Not in general, no, although some specific DatasetGraph implementations may.
There is some API support for reification:
https://jena.apache.org/documentation/notes/reification.html
Does that meet your use case?
ajs6f
> On Sep 18, 2018, at 3:37 PM, thomas lörtsch wrote:
>
> H
n order, that's okay-- we'll find some other
way to confirm this fix. I can set up a duplication of your problem, but it
will take a few days for me to get around to it.
ajs6f
> On Sep 18, 2018, at 12:37 PM, Marco Neumann wrote:
>
> I will take a look at it over the weekend,
and fixed the problem.
ajs6f
> On Sep 18, 2018, at 4:51 AM, Marco Neumann wrote:
>
> well spotted Adam, I think that nails it. I guess I was lucky with my setup
> to avoid this glitch so far. Don't want to anticipates Andy's call here but
> what's your plan? wrap t
For
> 6. org.apache.jena.sparql.engine.http.Service.queryAuthUser/queryAuthPwd
in particular, https://jena.apache.org/documentation/query/http-auth.html
details methods for all-Jena HTTP authentication. Let us know if that doesn't
meet your use case.
ajs6f
> On Sep 17, 2018,
verify that for us) then this is a bug and we can fix
it in a straightforward way.
Andy, can you confirm that diagnosis? If so, I'll open a ticket and write a PR
to use a Txn method to fix this.
ajs6f
> On Sep 17, 2018, at 10:14 AM, Markus Neumann wrote:
>
> It seems I made
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