Hibernate ORM is unclaimed —

Hibernate ORM

Your relational data. Objectively.·hibernate.org

Hibernate ORM is an object/relational mapping (ORM) framework for Java that makes relational data visible to a program in a natural, type-safe form. It implements the Jakarta Persistence (JPA) specification alongside its own native API, letting developers write persistent classes using standard Java idioms such as inheritance, polymorphism, and collections. It provides a powerful query language (HQL), tunable caching and locking strategies, and support for temporal data and audit logging across a wide range of relational databases.

What it's for

Mapping Java domain objects to relational database tablesWriting and compiling type-safe complex queries with HQLSynchronizing in-memory object changes with the databaseManaging concurrent data access via optimistic or pessimistic lockingQuerying historical data with temporal entitiesAudit logging of entity changesets

Features 16

Audit logging of entity changesets
Automatic code completion and validation for HQL in Hibernate Tools and IntelliJ IDEA
Built-in support for Spanner
Community Dialects module for older databases (Informix, Ingres, Teradata) and incubating SQLite support
Compatibility with PostgreSQL, MySQL, Db2, Oracle, SQL Server, Sybase ASE, EDB, TiDB, MariaDB, HANA, CockroachDB, H2, and HSQLDB
Compile-time validation of HQL queries via Hibernate Processor
Explicit pessimistic locking support
Hibernate Query Language (HQL), an object-oriented SQL dialect
Jakarta Persistence (JPA) specification implementation
Native Hibernate API alongside JPA compatibility
Native SQL query support
Object/Relational Mapping (ORM) for Java and relational databases
Optimistic locking with automatic versioning or timestamping
Support for annotation-based or XML-based object/relational mappings
Temporal entities for querying historical data states
Two-level, extremely tunable caching architecture

At a glance

open source

TypeLibrary / SDK

ForJava developers

Integrations

PostgreSQLTiDBIntelliJ IDEASpannerHSQLDBSybase ASEMariaDBSQL ServerDb2WildFlyOracleEclipse IDEH2EDBMySQLHANAMongoDBQuarkusCockroachDB

Resources

Docs

Pricing

Hibernate ORM is released under the ASL v2 license (since version 7.0.0.Beta5); a separate paid support option is linked but no pricing figures are given.