SynthForge Library Auto-Seeds Spring Boot Databases Using JPA Annotations

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A developer has released SynthForge, an open-source Java library published on Maven Central, designed to automate database seeding for Spring Boot applications. The tool addresses a common pain point where data generators like Faker lack awareness of relational entity dependencies, causing constraint violations during development. SynthForge reads JPA annotations such as @ManyToOne, @NotNull, and @Column(unique=true) directly from the entity model to determine data shape and generation rules. It builds a dependency graph from relationships and uses topological sorting to ensure parent records are created before child records, eliminating manual ID-tracking in seed scripts. Developers simply annotate entities with @Seed(count=N), start the app in a dev profile, and tables are populated automatically on each restart without any additional calling code.

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