Examples with Dataset org.apache.jena.query.Dataset used on opensource projects

Example 96 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class AbstractTestTransactionLifecycle method transaction_r02.

@Test
public void transaction_r02() {
    Dataset ds = create();
    ds.begin(ReadWrite.READ);
    assertTrue(ds.isInTransaction());
    ds.commit();
    assertFalse(ds.isInTransaction());
    ds.end();
    assertFalse(ds.isInTransaction());
}

Example 97 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class AbstractTestTransactionLifecycle method transaction_pattern_01.

// Patterns.
@Test
public void transaction_pattern_01() {
    Dataset ds = create();
    read1(ds);
    read1(ds);
}

Example 98 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class AbstractTestTransactionLifecycle method transaction_err_nontxn_commit_1.

// Cycle misalignment.
// test : commit
// test : abort
// Permit explain .end() - the case of "end" when not sure:  begin...end.end. 
@Test(expected = JenaTransactionException.class)
public void transaction_err_nontxn_commit_1() {
    Dataset ds = create();
    ds.commit();
}

Example 99 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class TestInMemDatasetAssembler method emptyDataset.

@Test
public void emptyDataset() {
    final Model model = createDefaultModel();
    final Resource empty = model.createResource("test:empty");
    empty.addProperty(type, DatasetAssemblerVocab.tDatasetTxnMem);
    Dataset dataset = assemble(empty);
    assertFalse(dataset.asDatasetGraph().find().hasNext());
}

Example 100 with Dataset

use of org.apache.jena.query.Dataset in project jena by apache.

the class TestInMemDatasetAssembler method directDataLinkToQuads.

@Test
public void directDataLinkToQuads() throws IOException {
    // first make a file of quads to load later
    final Model model = createDefaultModel();
    final Path quads = createTempFile("quadExample", ".nq");
    final Resource quadsURI = model.createResource(quads.toFile().toURI().toString());
    final Resource simpleExample = model.createResource("test:simpleExample");
    simpleExample.addProperty(type, DatasetAssemblerVocab.tDatasetTxnMem);
    simpleExample.addProperty(data, quadsURI);
    final DatasetGraph dsg = createTxnMem().asDatasetGraph();
    model.listStatements().mapWith(Statement::asTriple).mapWith(t -> new Quad(quadsURI.asNode(), t)).forEachRemaining(dsg::add);
    try (OutputStream out = new FileOutputStream(quads.toFile())) {
        write(out, dsg, NQUADS);
    }
    final Dataset dataset = assemble(simpleExample);
    final Model assembledDefaultModel = dataset.getDefaultModel();
    final Model assembledNamedModel = dataset.getNamedModel(quadsURI.getURI());
    assertTrue(assembledDefaultModel.isEmpty());
    assertTrue(assembledNamedModel.contains(assembledNamedModel.createStatement(simpleExample, data, quadsURI)));
}