Cannot initiate transaction operation

[timmy....@gmail.com]

Hi,

I'm using the latest Stardog Community edition together with the Apache Jena API. Whenever I call end() on com.hp.hpl.jena.query.Dataset, I'm getting the following exception:

com.hp.hpl.jena.shared.JenaException: com.complexible.stardog.StardogException: Cannot initiate transaction operation, transaction credentials are missing.
 at com.complexible.stardog.jena.StardogDatasetGraph.abort(StardogDatasetGraph.java:260)
 at com.complexible.stardog.jena.StardogDatasetGraph.end(StardogDatasetGraph.java:269)
 at com.hp.hpl.jena.sparql.core.DatasetImpl.end(DatasetImpl.java:158)
        ....

Am I missing a fital configuration item? For the record, I'm on Windows and have a valid sdpass.conf in AppData/Roaming/stardog. Thanks in advance!

[Evren Sirin]

The error message here is misleading. The problem is the transaction
already finished so calling end() raises an exception. Stardog
behavior here does not match the Jena documentation exactly here. But
as the javadoc [1] says calling end() after commit() or rollback() is
optional. So you can use the end() only for read transactions and
never use it for write transactions and you'll be fine. We'll fix this
mismatch in the next release anyway.

Best,
Evren

[1] http://jena.apache.org/documentation/javadoc/arq/com/hp/hpl/jena/sparql/core/Transactional.html

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[timmy....@gmail.com]

Thanks for that, it does seem to do the trick! Still running into some oth issues though. Will post a topic about this later.

Op donderdag 8 januari 2015 15:28:46 UTC+1 schreef Evren Sirin: