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

Example 46 with Transaction

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

the class IndexingServiceIntegrationTest method createData.

private void createData(GraphDatabaseService database, int numberOfNodes) {
    int index = 0;
    while (index < numberOfNodes) {
        try (Transaction transaction = database.beginTx()) {
            Node node = database.createNode(Label.label(FOOD_LABEL), Label.label(CLOTHES_LABEL), Label.label(WEATHER_LABEL));
            node.setProperty(PROPERTY_NAME, "Node" + index++);
            transaction.success();
        }
    }
}

Example 47 with Transaction

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

the class TestTransactionEventsWithIndexes method nodeCanBeLegacyIndexedInBeforeCommit.

@Test
public void nodeCanBeLegacyIndexedInBeforeCommit() throws Exception {
    // Given we have a legacy index...
    GraphDatabaseService db = dbRule.getGraphDatabaseAPI();
    final Index<Node> index;
    try (Transaction tx = db.beginTx()) {
        index = db.index().forNodes("index");
        tx.success();
    }
    // ... and a transaction event handler that likes to add nodes to that index
    db.registerTransactionEventHandler(new TransactionEventHandler<Object>() {

        @Override
        public Object beforeCommit(TransactionData data) throws Exception {
            Iterator<Node> nodes = data.createdNodes().iterator();
            if (nodes.hasNext()) {
                Node node = nodes.next();
                index.add(node, "key", "value");
            }
            return null;
        }

        @Override
        public void afterCommit(TransactionData data, Object state) {
        }

        @Override
        public void afterRollback(TransactionData data, Object state) {
        }
    });
    // When we create a node...
    try (Transaction tx = db.beginTx()) {
        db.schema().awaitIndexesOnline(10, TimeUnit.SECONDS);
        Node node = db.createNode();
        node.setProperty("random", 42);
        tx.success();
    }
    // Then we should be able to look it up through the index.
    try (Transaction ignore = db.beginTx()) {
        Node node = single(index.get("key", "value"));
        assertThat(node.getProperty("random"), is((Object) 42));
    }
}

Example 48 with Transaction

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

the class TestLuceneBatchInsert method shouldCreateAutoIndexThatIsUsableInEmbedded.

@Test
public void shouldCreateAutoIndexThatIsUsableInEmbedded() throws Exception {
    BatchInserterIndexProvider provider = new LuceneBatchInserterIndexProviderNewImpl(inserter);
    BatchInserterIndex index = provider.nodeIndex("node_auto_index", EXACT_CONFIG);
    long id = inserter.createNode(null);
    Map<String, Object> props = new HashMap<>();
    props.put("name", "peter");
    index.add(id, props);
    index.flush();
    provider.shutdown();
    shutdownInserter();
    switchToGraphDatabaseService(configure(GraphDatabaseSettings.node_keys_indexable, "name"), configure(GraphDatabaseSettings.relationship_keys_indexable, "relProp1,relProp2"), configure(GraphDatabaseSettings.node_auto_indexing, "true"), configure(GraphDatabaseSettings.relationship_auto_indexing, "true"));
    try (Transaction tx = db.beginTx()) {
        // Create the primitives
        Node node1 = db.createNode();
        // Add indexable and non-indexable properties
        node1.setProperty("name", "bob");
        // Make things persistent
        tx.success();
    }
    try (Transaction tx = db.beginTx()) {
        assertTrue(db.index().getNodeAutoIndexer().getAutoIndex().get("name", "peter").hasNext());
        assertTrue(db.index().getNodeAutoIndexer().getAutoIndex().get("name", "bob").hasNext());
        assertFalse(db.index().getNodeAutoIndexer().getAutoIndex().get("name", "joe").hasNext());
        tx.success();
    }
}

Example 49 with Transaction

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

the class TestLuceneBatchInsert method testSome.

@Test
public void testSome() throws Exception {
    BatchInserterIndexProvider provider = new LuceneBatchInserterIndexProviderNewImpl(inserter);
    String indexName = "users";
    BatchInserterIndex index = provider.nodeIndex(indexName, EXACT_CONFIG);
    Map<Integer, Long> ids = new HashMap<>();
    int count = 5;
    for (int i = 0; i < count; i++) {
        long id = inserter.createNode(null);
        index.add(id, map("name", "Joe" + i, "other", "Schmoe"));
        ids.put(i, id);
    }
    index.flush();
    for (int i = 0; i < count; i++) {
        assertContains(index.get("name", "Joe" + i), ids.get(i));
    }
    assertContains(index.query("name:Joe0 AND other:Schmoe"), ids.get(0));
    assertContains(index.query("name", "Joe*"), ids.values().toArray(new Long[ids.size()]));
    provider.shutdown();
    switchToGraphDatabaseService();
    try (Transaction transaction = db.beginTx()) {
        IndexManager indexManager = db.index();
        assertFalse(indexManager.existsForRelationships(indexName));
        assertTrue(indexManager.existsForNodes(indexName));
        assertNotNull(indexManager.forNodes(indexName));
        Index<Node> dbIndex = db.index().forNodes("users");
        for (int i = 0; i < count; i++) {
            assertContains(dbIndex.get("name", "Joe" + i), db.getNodeById(ids.get(i)));
        }
        Collection<Node> nodes = new ArrayList<>();
        for (long id : ids.values()) {
            nodes.add(db.getNodeById(id));
        }
        assertContains(dbIndex.query("name", "Joe*"), nodes.toArray(new Node[nodes.size()]));
        assertContains(dbIndex.query("name:Joe0 AND other:Schmoe"), db.getNodeById(ids.get(0)));
        transaction.success();
    }
}

Example 50 with Transaction

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

the class TestLuceneBatchInsert method testNumericValues.

@Test
public void testNumericValues() {
    BatchInserterIndexProvider provider = new LuceneBatchInserterIndexProviderNewImpl(inserter);
    BatchInserterIndex index = provider.nodeIndex("mine", EXACT_CONFIG);
    long node1 = inserter.createNode(null);
    index.add(node1, map("number", numeric(45)));
    long node2 = inserter.createNode(null);
    index.add(node2, map("number", numeric(21)));
    index.flush();
    assertContains(index.query("number", newIntRange("number", 21, 50, true, true)), node1, node2);
    provider.shutdown();
    switchToGraphDatabaseService();
    try (Transaction transaction = db.beginTx()) {
        Node n1 = db.getNodeById(node1);
        db.getNodeById(node2);
        Index<Node> idx = db.index().forNodes("mine");
        assertContains(idx.query("number", newIntRange("number", 21, 45, false, true)), n1);
        transaction.success();
    }
}