Question 1

How do I connect to a Neo4j database using the Java driver?

Accepted Answer

Use GraphDatabase.driver() with a Bolt URI and authentication tokens. Create a single Driver instance for your application to leverage connection pooling and ensure thread safety.

Question 2

Neo4j Java driver or Spring Data Neo4j: which should I use?

Accepted Answer

The official driver provides low-level control and is best for performance-critical applications, while Spring Data Neo4j offers higher-level abstractions for easier integration with Spring frameworks.

Question 3

How to manage transactions in the Neo4j Java driver?

Accepted Answer

Use Session objects for transactions; they are lightweight and should be confined to a single thread, while the Driver handles thread-safe connection management across the application.

Question 4

What Java versions work with the Neo4j driver?

Accepted Answer

It depends on the driver series: 6.x requires Java 17+, 5.x requires Java 17, and 4.x supports Java 8 and 11, as documented in the supported driver series table.

Question 5

How to set up connection pooling in Neo4j Java driver?

Accepted Answer

Connection pooling is built-in and automatic; simply reuse the Driver object across your application lifecycle to benefit from pooled connections without manual configuration.

Question 6

Can I use the driver with reactive programming?

Accepted Answer

While the core driver is synchronous, Neo4j provides reactive modules or integrations; check the documentation or preview features for specific support, as it may require additional setup.

neo4j-java-driver

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