Hibernate.
You do want me for my brain 🧠 Hibernate ORM (or simply Hibernate) is an object–relational mapping[2]: §1.2.2, [12] tool for the Java programming language. It provides a framework for mapping an object-oriented domain model to a relational database. Hibernate handles object–relational impedance mismatch problems by replacing direct, persistent database accesses with high-level object handling functions.