spring-projects/spring-data-neo4j
This system is the Spring Data Neo4j module, a data access framework that enables Java and Kotlin applications to interact with Neo4j graph databases. It provides a comprehensive set of tools for mapping entities to graph structures, managing transactions, and executing both imperative and reactive queries. The framework supports advanced features such as AOT compilation, native image generation, and custom type conversion, while also offering Kotlin-specific extensions for idiomatic usage.
65.2
Adequate · 31 July 2026
117k
lines of production code
Java
primary language
3
bus factor · 103 authors in all
4
measurements over time
How it got here
2015–2020 · Spring Data Neo4j 6.0 architecture and Kotlin support
This period focused on the comprehensive architectural overhaul of Spring Data Neo4j 6.0, introducing a new core mapping infrastructure, fluent APIs, and native image support. The work also established robust Kotlin integration through idiomatic extensions and extensive test coverage for the new imperative and reactive repository models.
42 changes
2021–2023 · Test coverage and AOT support
This period focused on expanding test coverage for complex mapping scenarios, transaction management, and deprecation handling within the Neo4j integration layer. Additionally, the project introduced Ahead-of-Time (AOT) support for native image compatibility and migrated documentation and build configurations to modern standards.
20 changes
2024–2025 · test coverage expansion
This period focused on significantly expanding the test suite for Spring Data Neo4j, adding comprehensive unit and integration tests across core components, repository factories, and type conversion logic. The work verified the behavior of cascading updates, Kotlin data class projections, and Spring Boot documentation examples, ensuring robustness and correctness throughout the codebase.
9 changes
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About this page
- The description of this project is derived from its own commit history, not from its README.
- The score is its highest published measurement, taken on 31 July 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
- Measured at commit 81eea79fa0 — the exact code this score is about.
- Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.