[jira] [Commented] (JENA-1492) Transactions not passed down for nested models.

["A. Soroka (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JENA-1492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16369943#comment-16369943 ] 

A. Soroka commented on JENA-1492:
---------------------------------

This means transactions initiated on the "outermost" model, right? So the workaround would be to initiate the transaction on the underlying dataset? (Which I admit is confusing and annoying.)

> Transactions not passed down for nested models.
> -----------------------------------------------
>
>                 Key: JENA-1492
>                 URL: https://issues.apache.org/jira/browse/JENA-1492
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: Fuseki, TDB, TDB2
>    Affects Versions: Jena 3.7.0
>            Reporter: Andy Seaborne
>            Priority: Major
>         Attachments: config-tdb2-model.ttl
>
>
> From [users@ email|https://lists.apache.org/thread.html/eacd92488360298a4916b2b1b0cf2d299797140be1960f84410f9b5d@%3Cusers.jena.apache.org%3E], after the configuration sorted out.
> Hierarchies of models, such as inference models, on top of a TBD2 backed-graph do not pass down the transaction leading to
> {noformat}
> org.apache.jena.dboe.transaction.txn.TransactionException: Not in a transaction
>     at org.apache.jena.dboe.transaction.txn.TransactionalComponentLifecycle.checkTxn(TransactionalComponentLifecycle.java:417)
>     at org.apache.jena.dboe.trans.bplustree.BPlusTree.getRootRead(BPlusTree.java:159)
>     at org.apache.jena.dboe.trans.bplustree.BPlusTree.iterator(BPlusTree.java:348)
>     at org.apache.jena.tdb2.store.tupletable.TupleIndexRecord.all(TupleIndexRecord.java:251)
>     at org.apache.jena.tdb2.store.tupletable.TupleTable.find(TupleTable.java:148)
>     at org.apache.jena.tdb2.store.nodetupletable.NodeTupleTableConcrete.find(NodeTupleTableConcrete.java:161)
>     at org.apache.jena.tdb2.store.nodetupletable.NodeTupleTableConcrete.find(NodeTupleTableConcrete.java:150)
>     at org.apache.jena.tdb2.store.nodetupletable.NodeTupleTableConcrete.findAsNodeIds(NodeTupleTableConcrete.java:141)
>     at org.apache.jena.tdb2.store.TripleTable.find(TripleTable.java:64)
>     at org.apache.jena.tdb2.store.DatasetGraphTDB.findInDftGraph(DatasetGraphTDB.java:110)
>     at org.apache.jena.sparql.core.DatasetGraphBaseFind.find(DatasetGraphBaseFind.java:47)
>     at org.apache.jena.sparql.core.DatasetGraphWrapper.find(DatasetGraphWrapper.java:152)
>     at org.apache.jena.sparql.core.GraphView.graphBaseFind(GraphView.java:125)
>     at org.apache.jena.graph.impl.GraphBase.find(GraphBase.java:255)
> {noformat}
> Example configuration (full version attached):
> {noformat}
> :service  a                   fuseki:Service ;
>         fuseki:dataset                :dataset ;
>         ...
> ## Wrapper: Datset containing one TDB2-backed graph
> :dataset a ja:RDFDataset ;
>     ja:defaultGraph       :graph .
> ##  TDB2-backed graph
> :graph rdf:type tdb2:GraphTDB ;
>     tdb2:dataset :datasetTDB2 .
> ## TDB2 database
> :datasetTDB2 rdf:type tdb2:DatasetTDB2 ;
>     tdb2:location "DB2".
> {noformat}
>  



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