What are the main features of the Hibernate framework?

The main features of the Hibernate framework are:

1. Object-Relational Mapping (ORM): Hibernate maps Java objects to database tables, offering a more intuitive and object-oriented way to access databases.

2. Database operations: Hibernate offers a set of straightforward and user-friendly APIs for CRUD (Create, Read, Update, Delete) operations, including saving, updating, deleting, and querying data.

3. Transaction Management: Hibernate supports transaction management to ensure the consistency and integrity of database operations.

4. Cache Management: Hibernate offers first-level and second-level cache mechanisms, which can effectively enhance database access performance.

5. Query Language: Hibernate offers two types of query languages, HQL (Hibernate Query Language) and Criteria API, which allow for easy execution of complex queries.

Hibernate supports various types of association mappings, such as one-to-one, one-to-many, many-to-one, and many-to-many.

7. Delayed loading: Hibernate supports a mechanism for delayed loading, allowing objects related data to be loaded only when needed, reducing the number of database accesses.

Transparent transaction management: Hibernate offers seamless transaction management that can automatically handle tasks such as committing, rolling back, and handling exceptions.

Cross-database support: Hibernate can easily switch and be compatible with various databases such as MySQL, Oracle, SQL Server, etc.

In general, the Hibernate framework mainly offers a convenient, efficient, and object-oriented way of accessing and operating databases, which can greatly simplify the developers’ workload and enhance the system’s scalability and performance.