Java Code Examples for org.neo4j.graphdb.Label#label()
The following examples show how to use
org.neo4j.graphdb.Label#label() .
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Example 1
Source File: Neo4jModule.java From SciGraph with Apache License 2.0 | 6 votes |
public static void setupSchemaIndexes(GraphDatabaseService graphDb, Neo4jConfiguration config) { Map<String, Set<String>> schemaIndexes = config.getSchemaIndexes(); for (Map.Entry<String, Set<String>> entry : schemaIndexes.entrySet()) { Label label = Label.label(entry.getKey()); for (String property : entry.getValue()) { try (Transaction tx = graphDb.beginTx()) { Schema schema = graphDb.schema(); IndexDefinition indexDefinition = schema.indexFor(label).on(property).create(); tx.success(); tx.close(); Transaction tx2 = graphDb.beginTx(); schema.awaitIndexOnline(indexDefinition, 2, TimeUnit.MINUTES); tx2.success(); tx2.close(); } } } }
Example 2
Source File: GraphApi.java From SciGraph with Apache License 2.0 | 6 votes |
public Optional<Node> getNode(String id, Optional<String> lblHint) { String iriResolved = curieUtil.getIri(id).orElse(id); Optional<Node> node = Optional.empty(); if (lblHint.isPresent()) { Label hintLabel = Label.label(lblHint.get()); Node hit = graphDb.findNode(hintLabel, NodeProperties.IRI, iriResolved); if (hit != null) { node = Optional.of(hit); } } else { String startQuery = "MATCH (n {" + NodeProperties.IRI + ": \"" + iriResolved + "\"}) RETURN n"; Result res = cypherUtil.execute(startQuery); if (res.hasNext()) { node = Optional.of((Node) res.next().get("n")); } } return node; }
Example 3
Source File: CategoryLabeler.java From SciGraph with Apache License 2.0 | 5 votes |
@Override public Boolean call() throws Exception { Label label = Label.label(category); try (Transaction tx = graphDb.beginTx()) { for (Long id : ids) { Node node = graphDb.getNodeById(id); GraphUtil.addProperty(node, Concept.CATEGORY, category); node.addLabel(label); } tx.success(); tx.close(); } return true; }
Example 4
Source File: TinkerGraphUtilTest.java From SciGraph with Apache License 2.0 | 5 votes |
@SuppressWarnings("unchecked") @Test public void labelsAreTranslated() { Label label = Label.label("label"); when(node.getLabels()).thenReturn(newHashSet(label)); TinkerGraphUtil tgu = new TinkerGraphUtil(curieUtil); Vertex v = tgu.addNode(node); assertThat((Iterable<String>)v.getProperty("types"), IsIterableContainingInAnyOrder.containsInAnyOrder("label")); }
Example 5
Source File: DL4JMLModel.java From neo4j-ml-procedures with Apache License 2.0 | 4 votes |
private Node node(String label, Object...keyValues) { return new VirtualNode(new Label[] {Label.label(label)}, MapUtil.map(keyValues),null); }
Example 6
Source File: AllNodesLabeler.java From SciGraph with Apache License 2.0 | 4 votes |
@Inject public AllNodesLabeler(String label, GraphDatabaseService graphDb) { this.label = Label.label(label); this.graphDb = graphDb; }
Example 7
Source File: EmbeddedLabel.java From extended-objects with Apache License 2.0 | 4 votes |
public EmbeddedLabel(String name) { this(Label.label(name)); }