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

Example 26 with Node

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

the class BigStoreIT method createReferenceNode.

private Node createReferenceNode(GraphDatabaseService db) {
    try (Transaction tx = db.beginTx()) {
        Node node = db.createNode(REFERENCE);
        tx.success();
        return node;
    }
}

Example 27 with Node

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

the class BigStoreIT method testHighIds.

private void testHighIds(long highMark, int minus, int requiredHeapMb) throws IOException {
    if (!machineIsOkToRunThisTest(requiredHeapMb)) {
        return;
    }
    long idBelow = highMark - minus;
    setHighIds(idBelow);
    String propertyKey = "name";
    int intPropertyValue = 123;
    String stringPropertyValue = "Long string, longer than would fit in shortstring";
    long[] arrayPropertyValue = new long[] { 1021L, 321L, 343212L };
    Transaction tx = db.beginTx();
    Node nodeBelowTheLine = db.createNode();
    nodeBelowTheLine.setProperty(propertyKey, intPropertyValue);
    assertEquals(idBelow, nodeBelowTheLine.getId());
    Node nodeAboveTheLine = db.createNode();
    nodeAboveTheLine.setProperty(propertyKey, stringPropertyValue);
    Relationship relBelowTheLine = nodeBelowTheLine.createRelationshipTo(nodeAboveTheLine, this);
    relBelowTheLine.setProperty(propertyKey, arrayPropertyValue);
    assertEquals(idBelow, relBelowTheLine.getId());
    Relationship relAboveTheLine = nodeAboveTheLine.createRelationshipTo(nodeBelowTheLine, this);
    assertEquals(highMark, relAboveTheLine.getId());
    assertEquals(highMark, nodeAboveTheLine.getId());
    assertEquals(intPropertyValue, nodeBelowTheLine.getProperty(propertyKey));
    assertEquals(stringPropertyValue, nodeAboveTheLine.getProperty(propertyKey));
    assertTrue(Arrays.equals(arrayPropertyValue, (long[]) relBelowTheLine.getProperty(propertyKey)));
    tx.success();
    tx.close();
    for (int i = 0; i < 2; i++) {
        try (Transaction transaction = db.beginTx()) {
            assertEquals(nodeAboveTheLine, db.getNodeById(highMark));
            assertEquals(idBelow, nodeBelowTheLine.getId());
            assertEquals(highMark, nodeAboveTheLine.getId());
            assertEquals(idBelow, relBelowTheLine.getId());
            assertEquals(highMark, relAboveTheLine.getId());
            assertEquals(relBelowTheLine, db.getNodeById(idBelow).getSingleRelationship(this, Direction.OUTGOING));
            assertEquals(relAboveTheLine, db.getNodeById(idBelow).getSingleRelationship(this, Direction.INCOMING));
            assertEquals(idBelow, relBelowTheLine.getId());
            assertEquals(highMark, relAboveTheLine.getId());
            assertEquals(asSet(asList(relBelowTheLine, relAboveTheLine)), asSet(Iterables.asCollection(db.getNodeById(idBelow).getRelationships())));
            transaction.success();
        }
        if (i == 0) {
            db = dbRule.restartDatabase();
        }
    }
}

Example 28 with Node

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

the class ConcurrentCreateAndGetRelationshipsIT method createNode.

private Node createNode(GraphDatabaseService db) {
    try (Transaction tx = db.beginTx()) {
        Node node = db.createNode();
        tx.success();
        return node;
    }
}

Example 29 with Node

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

the class ConcurrentCreateAndGetRelationshipsIT method tryToReproduceTheIssue.

@Test
public void tryToReproduceTheIssue() throws Exception {
    // GIVEN
    GraphDatabaseService db = dbRule.getGraphDatabaseAPI();
    CountDownLatch startSignal = new CountDownLatch(1);
    AtomicBoolean stopSignal = new AtomicBoolean();
    AtomicReference<Exception> failure = new AtomicReference<Exception>();
    Node parentNode = createNode(db);
    Collection<Worker> workers = createWorkers(db, startSignal, stopSignal, failure, parentNode);
    // WHEN
    startSignal.countDown();
    sleep(500);
    stopSignal.set(true);
    awaitWorkersToEnd(workers);
    // THEN
    if (failure.get() != null) {
        throw new Exception("A worker failed", failure.get());
    }
}

Example 30 with Node

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

the class NestedTransactionLocksIT method createNode.

private Node createNode() {
    try (Transaction tx = db.beginTx()) {
        Node n = db.createNode();
        tx.success();
        return n;
    }
}