Spring Data Graph with Neo4j Support
From the homepage:
Spring Data Graph enables POJO based development for Graph Databases like Neo4j. It extends annotated entity classes with transparent mapping functionality. A template programming model equivalent to well known Spring templates is also supported. Spring Data Graph is part of the bigger Spring Data project which aims to provide convenient support for NoSQL databases.
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Here is an overview of Spring Data Graph features
- Support for property graphs (nodes connected via relationships, each with arbitrary properties)
- Transparent mapping of annotated POJO entities (via AspectJ
- Neo4jTemplate with convenient API, exception translation and optional transaction management
- Different type representation strategies for keeping type information in the graph
- Dynamic type projections (duck typing)
- Spring Data Commons Repositories Support
- Cross-store support for partial JPA – Graph Entities
- Neo4j Traversal support on dynamic fields and via repository methods
- Neo4j Indexing support (including full-text and numeric range queries)
- Support for JSR-303 (Bean Validation)
- Support for the Neo4j Server
- Support for running as extensions in the Neo4j Server
If Neo4j or another NoSQL database is on your agenda, take a long look.