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

Example 1 with StatementTokenNameLookup

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

the class RelationshipProxy method getProperty.

@Override
public Object getProperty(String key) {
    if (null == key) {
        throw new IllegalArgumentException("(null) property key is not allowed");
    }
    try (Statement statement = actions.statement()) {
        try {
            int propertyId = statement.readOperations().propertyKeyGetForName(key);
            if (propertyId == KeyReadOperations.NO_SUCH_PROPERTY_KEY) {
                throw new NotFoundException(String.format("No such property, '%s'.", key));
            }
            Object value = statement.readOperations().relationshipGetProperty(getId(), propertyId);
            if (value == null) {
                throw new PropertyNotFoundException(propertyId, EntityType.RELATIONSHIP, getId());
            }
            return value;
        } catch (EntityNotFoundException | PropertyNotFoundException e) {
            throw new NotFoundException(e.getUserMessage(new StatementTokenNameLookup(statement.readOperations())), e);
        }
    }
}

Example 2 with StatementTokenNameLookup

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

the class NodeProxy method getProperty.

@Override
public Object getProperty(String key) throws NotFoundException {
    if (null == key) {
        throw new IllegalArgumentException("(null) property key is not allowed");
    }
    try (Statement statement = actions.statement()) {
        try {
            int propertyKeyId = statement.readOperations().propertyKeyGetForName(key);
            if (propertyKeyId == KeyReadOperations.NO_SUCH_PROPERTY_KEY) {
                throw new NotFoundException(format("No such property, '%s'.", key));
            }
            Object value = statement.readOperations().nodeGetProperty(nodeId, propertyKeyId);
            if (value == null) {
                throw new PropertyNotFoundException(propertyKeyId, EntityType.NODE, nodeId);
            }
            return value;
        } catch (EntityNotFoundException | PropertyNotFoundException e) {
            throw new NotFoundException(e.getUserMessage(new StatementTokenNameLookup(statement.readOperations())), e);
        }
    }
}

Example 3 with StatementTokenNameLookup

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

the class MultiIndexPopulationConcurrentUpdatesIT method launchCustomIndexPopulation.

private void launchCustomIndexPopulation(Map<String, Integer> labelNameIdMap, int propertyId, List<NodeUpdates> updates) throws Exception {
    NeoStores neoStores = getNeoStores();
    LabelScanStore labelScanStore = getLabelScanStore();
    ThreadToStatementContextBridge transactionStatementContextBridge = getTransactionStatementContextBridge();
    try (Transaction transaction = embeddedDatabase.beginTx()) {
        Statement statement = transactionStatementContextBridge.get();
        DynamicIndexStoreView storeView = new DynamicIndexStoreViewWrapper(labelScanStore, LockService.NO_LOCK_SERVICE, neoStores, updates);
        SchemaIndexProviderMap providerMap = new DefaultSchemaIndexProviderMap(getSchemaIndexProvider());
        JobScheduler scheduler = getJobScheduler();
        StatementTokenNameLookup tokenNameLookup = new StatementTokenNameLookup(statement.readOperations());
        indexService = IndexingServiceFactory.createIndexingService(Config.empty(), scheduler, providerMap, storeView, tokenNameLookup, getIndexRules(neoStores), NullLogProvider.getInstance(), IndexingService.NO_MONITOR, () -> {
        });
        indexService.start();
        IndexRule[] rules = createIndexRules(labelNameIdMap, propertyId);
        indexService.createIndexes(rules);
        transaction.success();
    }
}

Example 4 with StatementTokenNameLookup

use of org.neo4j.kernel.api.StatementTokenNameLookup 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 5 with StatementTokenNameLookup

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

the class BuiltInProcedures method listIndexes.

@Description("List all indexes in the database.")
@Procedure(name = "db.indexes", mode = READ)
public Stream<IndexResult> listIndexes() throws ProcedureException {
    try (Statement statement = tx.acquireStatement()) {
        ReadOperations operations = statement.readOperations();
        TokenNameLookup tokens = new StatementTokenNameLookup(operations);
        List<NewIndexDescriptor> indexes = asList(operations.indexesGetAll());
        Set<NewIndexDescriptor> uniqueIndexes = asSet(operations.uniqueIndexesGetAll());
        indexes.addAll(uniqueIndexes);
        indexes.sort(Comparator.comparing(a -> a.userDescription(tokens)));
        ArrayList<IndexResult> result = new ArrayList<>();
        for (NewIndexDescriptor index : indexes) {
            try {
                String type;
                if (uniqueIndexes.contains(index)) {
                    type = IndexType.NODE_UNIQUE_PROPERTY.typeName();
                } else {
                    type = IndexType.NODE_LABEL_PROPERTY.typeName();
                }
                result.add(new IndexResult("INDEX ON " + index.schema().userDescription(tokens), operations.indexGetState(index).toString(), type));
            } catch (IndexNotFoundKernelException e) {
                throw new ProcedureException(Status.Schema.IndexNotFound, e, "No index on ", index.userDescription(tokens));
            }
        }
        return result.stream();
    }
}