Appendix A. Driver terminology

This section lists the relevant terminology related to Neo4j drivers.

acquire (connection)
To borrow a driver connection that is not currently in use from a connection pool.
Bolt
Bolt is a Neo4j proprietary, binary protocol used for communication between client applications and database servers. Bolt is versioned independently from the database and the drivers.
Bolt Routing Protocol
The steps required for a driver to obtain a routing table from a cluster member.
Bolt server
A Neo4j instance that can accept incoming Bolt connections.
bookmark
A marker for a point in the transactional history of Neo4j.
client application
A piece of software that interacts with a database server via a driver.
connection
A persistent communication channel between a client application and a database server.
connection pool
A set of connections maintained for quick access, that can be acquired and released as required.
direct driver
A driver that can connect to a single server address.
driver (object)
A globally accessible controller for all database access.
driver (package)
A software library that provides access to Neo4j from a particular programming language. The Neo4j drivers implement the Bolt protocol.
release (connection)
To return a connection back into a connection pool after use.
routing driver
A driver that can route traffic to multiple members of a cluster using the routing protocol.
routing table
A set of server addresses that identify cluster members associated with roles.
server address
A combination of host name and port or IP address and port that targets a server.
session
A causally linked sequence of transactions.
statement result
The stream of records that are returned on execution of a statement.
thread safety
See https://en.wikipedia.org/wiki/Thread_safety.
transaction
A transaction comprises a unit of work performed against a database. It is treated in a coherent and reliable way, independent of other transactions. A transaction, by definition, must be atomic, consistent, isolated, and durable.