Hibernate Tutorials

Introduction to Hibernate Hibernate History Hibernate Features Hibernate Architecture Hibernate Session Factory Hibernate Session

Hibernate Examples

Hibernate First Example Hibernate Annotations Example Web Application Example Hibernate GeneratedValue Strategies Hibernate Dialects

Hibernate Inheritance Mapping

Single Table Strategy Table per Class Strategy Joined Table Strategy

Hibernate Mapping

Hibernate Mapping Hibernate One To One Mapping Hibernate One To Many Mapping Hibernate Many To One Mapping Hibernate Many To Many Mapping

Hibernate Named Query

Named Query using XML file Named Query using annotation

Hibernate Caching

Hibernate Caching First level Cache Second Level Cache

Hibernate Query Language (HQL)

Hibernate Query Language

Hibernate Criteria Query Language (HCQL)

Hibernate Criteria Query Language

Misc

N+1 SELECT problem in hibernate Dirty checking in hibernate Lazy loading Hibernate configuration Cascade in Hibernate Hibernate life cycle Inverse in Hibernate Merge in Hibernate Composite key in Hibernate Load() vs. get()  Merge() vs. update() Save() vs. persist() JDBC vs. Hibernate JPA vs. Hibernate

Hibernate Features
2019-07-22 05:46:01

Hibernate Features

hibernate features

1. Lightweight

  • Hibernate is a lightweight framework as it does not contains additional functionalities; it uses only those functionalities required for object-relational mapping.
  • It is a lightweight framework because it uses persistent classes for data transfer between java application and databases.

2. Open Source

  • Hibernate is open-source software that means it is available for everyone without any cost. Its source code is made available so that anyone can use and develop applications using hibernate.
  • It can be downloaded from its official website, hibernate.org. The latest version a user can download is Hibernate 5.4.

3. ORM (Object Relation Mapping)

  • Hibernate is an ORM tool which helps in the interaction between the java classes and relational database.
  • It also solves the problem of data mismatch found in Java application and RDBMS.

4. High Performance

  • Hibernate supports many different fetching techniques such as, caching, lazy initialization, and many more to achieve high performance.

5. HQL (Hibernate Query Language)

  • Hibernate has its query language, i.e., HQL (Hibernate Query Language) which is independent of the database.
  • HQL is an object-oriented language similar to SQL, but it works with the persistent object and its properties.

6. Caching

  • Hibernate supports two levels of caching, first-level and second-level caching.
  • Caching is the process of storing data into cache memory and improves the speed of data access.

7. Auto-Generation

  • Hibernate provides a feature of automatic table generation. It means a programmer need not worry about the query implementation, i.e., Hibernate does on its own.

8. Scalability

  • Hibernate is highly scalable as it can be fit in any environment. Hibernate can be used for both small scale and large scale applications.

9. Lazy Loading

  • Hibernate supports a new concept called lazy loading. Lazy loading concept retrieves the only necessary object for execution.
  • It also improves the performance of an application.

10. Easy to learn

  • Hibernate is easy to learn and implement. It is developer-friendly as it takes care of the changes made to the database automatically, so it reduces the developer’s work.

11. Database Independent

  • Hibernate is database-independent as it provides ‘Database Dialect’ so we need not write SQL queries.
  • It supports many databases such as Oracle, MySql, Sybase, etc.