Andy,
Thanks and that worked by the way. I am using maven and have these setting, so
I get the latest:
jena-arq: <version>2.9.1-incubating-SNAPSHOT</version>
jena-tdb: <version>0.9.1-incubating-SNAPSHOT</version>
Now, I am having a similar issues as before, but with using the model to add a
statement (vs before was TDBLoader) and the issue is between restarts of the
JVM.
If, I use this:
model.add(statement);
TDB.sync(dataset);
on a restart, I get a count of 1 with my Count query, but no visible results
with my All query:
1) All query: "SELECT * {?s ?p ?o}"
2 ) Count query: "SELECT (count(*) AS ?count) { ?s ?p ?o }"
But, if I change the TDB.sync(dataset) to model.close(), it does work, and I
see the results as well as still the count of 1.
So, do I need to close the model after an add, or call some other method to
sync, or is it a bug....???
Tkx,
Jim
________________________________
From: Andy Seaborne <a...@apache.org>
To: jena-users@incubator.apache.org
Sent: Monday, April 16, 2012 12:07 PM
Subject: Re: Loading OWL and TDB
On 16/04/12 16:33, Jim Reilly wrote:
> Andy,
>
> I tried the TDB.sync without the model.close, but that did not work
> (meaning no data shown after a JVM re-start).
Lack of clarity on my part.
There is a bug in the 0.9.0 release whereby sync of a dataset was not getting
passed down to the storage correctly (this is JENA-234). dataset.close should
do a sync if the dataset has not been used for transactions at all, that is,
it's running in 0.8 style. The dataset implementation in TDB 0.9.0 behaves
non-transactionally until used in some transaction - this is to maximise
compatibility with existing code.
Unfortunately, JENA-234 means that .close was not causing a sync and sync was
not getting propagated properly. Fixed now in development builds and svn.
The development build 0.9.1-incubator-SNAPSHOT (via [1] as described in [2])
Andy
[1]
https://repository.apache.org/content/repositories/snapshots/org/apache/jena/
[2] http://incubator.apache.org/jena/download/maven.html
