Examples with GraphDatabaseService org.neo4j.graphdb.GraphDatabaseService used on opensource projects

Example 66 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class SchemaIndexProviderApprovalTest method init.

@BeforeClass
public static void init() {
    GraphDatabaseService db = new TestGraphDatabaseFactory().newImpermanentDatabase();
    for (TestValue value : TestValue.values()) {
        createNode(db, PROPERTY_KEY, value.value);
    }
    noIndexRun = runFindByLabelAndProperty(db);
    createIndex(db, label(LABEL), PROPERTY_KEY);
    indexRun = runFindByLabelAndProperty(db);
    db.shutdown();
}

Example 67 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class SchemaConstraintProviderApprovalTest method init.

@BeforeClass
public static void init() {
    GraphDatabaseService db = new TestGraphDatabaseFactory().newImpermanentDatabase();
    for (TestValue value : TestValue.values()) {
        createNode(db, PROPERTY_KEY, value.value);
    }
    noIndexRun = runFindByLabelAndProperty(db);
    createConstraint(db, label(LABEL), PROPERTY_KEY);
    constraintRun = runFindByLabelAndProperty(db);
    db.shutdown();
}

Example 68 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class NodeCountsTest method shouldNotSeeNodeCountsOfOtherTransaction.

@Test
public void shouldNotSeeNodeCountsOfOtherTransaction() throws Exception {
    // given
    GraphDatabaseService graphDb = db.getGraphDatabaseAPI();
    final Barrier.Control barrier = new Barrier.Control();
    long before = numberOfNodes();
    Future<Long> done = threading.execute(new NamedFunction<GraphDatabaseService, Long>("create-nodes") {

        @Override
        public Long apply(GraphDatabaseService graphDb) {
            try (Transaction tx = graphDb.beginTx()) {
                graphDb.createNode();
                graphDb.createNode();
                barrier.reached();
                long whatThisThreadSees = countsForNode();
                tx.success();
                return whatThisThreadSees;
            }
        }
    }, graphDb);
    barrier.await();
    // when
    long during = numberOfNodes();
    barrier.release();
    long whatOtherThreadSees = done.get();
    long after = numberOfNodes();
    // then
    assertEquals(0, before);
    assertEquals(0, during);
    assertEquals(after, whatOtherThreadSees);
    assertEquals(2, after);
}

Example 69 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class NodeCountsTest method shouldReportNumberOfNodes.

@Test
public void shouldReportNumberOfNodes() throws Exception {
    // given
    GraphDatabaseService graphDb = db.getGraphDatabaseAPI();
    try (Transaction tx = graphDb.beginTx()) {
        graphDb.createNode();
        graphDb.createNode();
        tx.success();
    }
    // when
    long nodeCount = numberOfNodes();
    // then
    assertEquals(2, nodeCount);
}

Example 70 with GraphDatabaseService

use of org.neo4j.graphdb.GraphDatabaseService in project neo4j by neo4j.

the class NodeCountsTest method shouldReportAccurateNumberOfNodesAfterDeletion.

@Test
public void shouldReportAccurateNumberOfNodesAfterDeletion() throws Exception {
    // given
    GraphDatabaseService graphDb = db.getGraphDatabaseAPI();
    Node one;
    try (Transaction tx = graphDb.beginTx()) {
        one = graphDb.createNode();
        graphDb.createNode();
        tx.success();
    }
    try (Transaction tx = graphDb.beginTx()) {
        one.delete();
        tx.success();
    }
    // when
    long nodeCount = numberOfNodes();
    // then
    assertEquals(1, nodeCount);
}