Examples with Index org.neo4j.graphdb.index.Index used on opensource projects

Example 6 with Index

use of org.neo4j.graphdb.index.Index in project neo4j-clean-remote-db-addon by jexp.

the class Neo4jDatabaseCleaner method getMutableIndex.

private <T extends PropertyContainer> Index<T> getMutableIndex(Index<T> index) {
    final Class<? extends Index> indexClass = index.getClass();
    if (indexClass.getName().endsWith("ReadOnlyIndexToIndexAdapter")) {
        try {
            final Field delegateIndexField = indexClass.getDeclaredField("delegate");
            delegateIndexField.setAccessible(true);
            return (Index<T>) delegateIndexField.get(index);
        } catch (Exception e) {
            throw new UnsupportedOperationException(e);
        }
    } else {
        return index;
    }
}

Example 7 with Index

use of org.neo4j.graphdb.index.Index in project neo4j by neo4j.

the class IndexProviderShellApp method index.

private void index(AppCommandParser parser, Session session, Output out) throws ShellException, RemoteException {
    NodeOrRelationship current = getCurrent(session);
    String index = getIndexName(parser);
    String key = parser.argument(1, "Key not supplied");
    Object value = parser.arguments().size() > 2 ? parser.arguments().get(2) : current.getProperty(key, null);
    if (value == null) {
        throw new ShellException("No value to index");
    }
    Index theIndex = current.isNode() ? getServer().getDb().index().forNodes(index) : getServer().getDb().index().forRelationships(index);
    theIndex.add(current.asPropertyContainer(), key, value);
}

Example 8 with Index

use of org.neo4j.graphdb.index.Index in project neo4j by neo4j.

the class IndexProviderShellApp method query.

private IndexHits<PropertyContainer> query(AppCommandParser parser, Output out) throws RemoteException, ShellException {
    String index = getIndexName(parser);
    String query1 = parser.argument(1, "Key not supplied");
    String query2 = parser.argumentWithDefault(2, null);
    Index theIndex = getIndex(index, getEntityType(parser), out);
    return query2 != null ? theIndex.query(query1, query2) : theIndex.query(query1);
}

Example 9 with Index

use of org.neo4j.graphdb.index.Index in project neo4j by neo4j.

the class IndexCreationTest method indexCreationConfigRaceCondition.

@Test
public void indexCreationConfigRaceCondition() throws Exception {
    // a couple of times to be sure.
    for (int run = 0; run < 10; run++) {
        final int r = run;
        final CountDownLatch latch = new CountDownLatch(1);
        ExecutorService executor = newCachedThreadPool();
        for (int thread = 0; thread < 10; thread++) {
            executor.submit((Runnable) () -> {
                try (Transaction tx = db.beginTx()) {
                    latch.await();
                    Index<Node> index = db.index().forNodes("index" + r);
                    Node node = db.createNode();
                    index.add(node, "name", "Name");
                    tx.success();
                } catch (InterruptedException e) {
                    Thread.interrupted();
                }
            });
        }
        latch.countDown();
        executor.shutdown();
        executor.awaitTermination(10, TimeUnit.SECONDS);
        verifyThatIndexCreationTransactionIsTheFirstOne();
    }
}

Example 10 with Index

use of org.neo4j.graphdb.index.Index in project neo4j-apoc-procedures by neo4j-contrib.

the class IndexUpdateTransactionEventHandler method initIndexConfiguration.

// might be run from a scheduler, so we need to make sure we have a transaction
private synchronized Map<String, Map<String, Collection<Index<Node>>>> initIndexConfiguration() {
    Map<String, Map<String, Collection<Index<Node>>>> indexesByLabelAndProperty = new HashMap<>();
    try (Transaction tx = graphDatabaseService.beginTx()) {
        final IndexManager indexManager = graphDatabaseService.index();
        for (String indexName : indexManager.nodeIndexNames()) {
            final Index<Node> index = indexManager.forNodes(indexName);
            Map<String, String> indexConfig = indexManager.getConfiguration(index);
            if (Util.toBoolean(indexConfig.get("autoUpdate"))) {
                String labels = indexConfig.getOrDefault("labels", "");
                for (String label : labels.split(":")) {
                    Map<String, Collection<Index<Node>>> propertyKeyToIndexMap = indexesByLabelAndProperty.computeIfAbsent(label, s -> new HashMap<>());
                    String[] keysForLabel = indexConfig.getOrDefault("keysForLabel:" + label, "").split(":");
                    for (String property : keysForLabel) {
                        propertyKeyToIndexMap.computeIfAbsent(property, s -> new ArrayList<>()).add(index);
                    }
                }
            }
        }
        tx.success();
    }
    return indexesByLabelAndProperty;
}