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ASF GitHub Bot commented on JENA-1521: -------------------------------------- Github user asfgit closed the pull request at: https://github.com/apache/jena/pull/397 > TDB2 backed Datasets cannot be re-opened. > ----------------------------------------- > > Key: JENA-1521 > URL: https://issues.apache.org/jira/browse/JENA-1521 > Project: Apache Jena > Issue Type: Bug > Environment: Apache Jena: 3.7.0 > Java: 1.8_162 > Reporter: Greg Albiston > Priority: Major > > If a Dataset connected to with TDB2Factory.connectDataset() is opened, closed > and then later re-opened it is reported that the Dataset is closed. > Opening, closing and re-opening a Dataset with TDBFactory.createDataset() > causes no issues. > Example code to reproduce: > {noformat} > public void testTDB2OpenClose() { > System.out.println("TDB2 Open Close"); > try { > Dataset dataset = TDB2Factory.connectDataset("test_tdb2"); > dataset.begin(ReadWrite.WRITE); > Model defaultModel = dataset.getDefaultModel(); > > defaultModel.add(ResourceFactory.createResource("http://example.org/my#SubjA"), > ResourceFactory.createProperty("http://example.org/my#PropA"), > ResourceFactory.createResource("http://example.org/my#ObjA")); > dataset.commit(); > dataset.end(); > dataset.close(); > Dataset dataset2 = TDB2Factory.connectDataset("test_tdb2"); > dataset2.begin(ReadWrite.READ); > Model readModel = dataset2.getDefaultModel(); > Iterator<Statement> statements = readModel.listStatements(); > while (statements.hasNext()) > { Statement statement = statements.next(); System.out.println(statement); } > dataset2.end(); > dataset2.close(); > } catch (Exception ex) \{ System.out.println("Exception: " + > ex.getMessage()); } > } > {noformat} > {noformat} > public void testTDB1OpenClose() { > > System.out.println("TDB1 Open Close"); > try { > Dataset dataset = TDBFactory.createDataset("test_tdb1"); > dataset.begin(ReadWrite.WRITE); > Model defaultModel = dataset.getDefaultModel(); > > defaultModel.add(ResourceFactory.createResource("http://example.org/my#SubjA"), > ResourceFactory.createProperty("http://example.org/my#PropA"), > ResourceFactory.createResource("http://example.org/my#ObjA")); > dataset.commit(); > dataset.end(); > dataset.close(); > > Dataset dataset2 = TDBFactory.createDataset("test_tdb1"); > dataset2.begin(ReadWrite.READ); > Model readModel = dataset2.getDefaultModel(); > Iterator<Statement> statements = readModel.listStatements(); > while (statements.hasNext()) \{ Statement statement = statements.next(); > System.out.println(statement); } > dataset2.end(); > dataset2.close(); > } catch (Exception ex) > { System.out.println("Exception: " + ex.getMessage()); } > } > {noformat} > -- This message was sent by Atlassian JIRA (v7.6.3#76005)