Examples with Statement org.neo4j.kernel.api.Statement used on opensource projects

Example 1 with Statement

use of org.neo4j.kernel.api.Statement in project neo4j by neo4j.

the class StorageLayerTest method readOps.

protected ReadOperations readOps() {
    DependencyResolver dependencyResolver = db.getDependencyResolver();
    Statement statement = dependencyResolver.resolveDependency(ThreadToStatementContextBridge.class).get();
    return statement.readOperations();
}

Example 2 with Statement

use of org.neo4j.kernel.api.Statement in project neo4j by neo4j.

the class NeoStoreIndexStoreViewTest method getOrCreateIds.

private void getOrCreateIds() throws KernelException {
    try (Transaction tx = graphDb.beginTx()) {
        ThreadToStatementContextBridge bridge = graphDb.getDependencyResolver().resolveDependency(ThreadToStatementContextBridge.class);
        try (Statement statement = bridge.get()) {
            labelId = statement.tokenWriteOperations().labelGetOrCreateForName("Person");
            propertyKeyId = statement.tokenWriteOperations().propertyKeyGetOrCreateForName("name");
        }
        tx.success();
    }
}

Example 3 with Statement

use of org.neo4j.kernel.api.Statement in project neo4j by neo4j.

the class BuiltInProcedures method listConstraints.

@Description("List all constraints in the database.")
@Procedure(name = "db.constraints", mode = READ)
public Stream<ConstraintResult> listConstraints() {
    Statement statement = tx.acquireStatement();
    ReadOperations operations = statement.readOperations();
    TokenNameLookup tokens = new StatementTokenNameLookup(operations);
    return asList(operations.constraintsGetAll()).stream().map((constraint) -> constraint.prettyPrint(tokens)).sorted().map(ConstraintResult::new).onClose(statement::close);
}

Example 4 with Statement

use of org.neo4j.kernel.api.Statement in project neo4j by neo4j.

the class IndexPopulationJobTest method before.

@Before
public void before() throws Exception {
    db = (GraphDatabaseAPI) new TestGraphDatabaseFactory().newImpermanentDatabase();
    kernel = db.getDependencyResolver().resolveDependency(KernelAPI.class);
    stateHolder = new KernelSchemaStateStore(NullLogProvider.getInstance());
    indexStoreView = indexStoreView();
    try (KernelTransaction tx = kernel.newTransaction(KernelTransaction.Type.implicit, AUTH_DISABLED);
        Statement statement = tx.acquireStatement()) {
        labelId = statement.tokenWriteOperations().labelGetOrCreateForName(FIRST.name());
        statement.tokenWriteOperations().labelGetOrCreateForName(SECOND.name());
        tx.success();
    }
}

Example 5 with Statement

use of org.neo4j.kernel.api.Statement in project neo4j by neo4j.

the class IndexRecoveryIT method createSomeBananas.

private Set<IndexEntryUpdate> createSomeBananas(Label label) {
    Set<IndexEntryUpdate> updates = new HashSet<>();
    try (Transaction tx = db.beginTx()) {
        ThreadToStatementContextBridge ctxSupplier = db.getDependencyResolver().resolveDependency(ThreadToStatementContextBridge.class);
        try (Statement statement = ctxSupplier.get()) {
            int labelId = statement.readOperations().labelGetForName(label.name());
            int propertyKeyId = statement.readOperations().propertyKeyGetForName(key);
            LabelSchemaDescriptor schemaDescriptor = SchemaDescriptorFactory.forLabel(labelId, propertyKeyId);
            for (int number : new int[] { 4, 10 }) {
                Node node = db.createNode(label);
                node.setProperty(key, number);
                updates.add(IndexEntryUpdate.add(node.getId(), schemaDescriptor, number));
            }
        }
        tx.success();
        return updates;
    }
}