presto-redis/src/main/java/io/prestosql/plugin/redis/RedisConnector.java/RedisConnector/RedisConnector
class RedisConnector:    @Inject
    public RedisConnector(
            RedisMetadata metadata,
            RedisSplitManager splitManager,
            RedisRecordSetProvider recordSetProvider)
    {
        this.metadata = requireNonNull(metadata, "metadata is null");
        this.splitManager = requireNonNull(splitManager, "splitManager is null");
        this.recordSetProvider = requireNonNull(recordSetProvider, "recordSetProvider is null");
    }