Hibernate ORM

Hibernate ORM is an object-relational mapping tool for the Java programming language. It provides a framework for mapping an object-oriented domain model to a relational database.

from Zero to Hero Complete practical approach

Introduction to Hibernate ORM

  • What is ORM?
  • Why Hibernate ORM?
  • What is Hibernation ORM?
  • Feature of Hibernate ORM
  • Hibernate ORM Architecture
  • Hibernate Configuration
  • Most important topic
    • Session
    • SessionFactory

Hibernate ORM CRUD operations

  • Create record(s)
  • Retrieve record(s)
  • Update record(s)
  • Delete record(s)

Primary Keys support

  • The @Id annotation
  • Types of ID generation strategies
    • GenerationType.AUTO
    • GenerationType.IDENTITY
    • GenerationType.SEQUENCE
    • GenerationType.TABLE

Associations

  • One to One
    • One to One - unidirectional
    • One to One - bidirectional
  • One to Many
    • One to Many - unidirectional
    • One to Many - bidirectional
  • Many to One
    • Many to One - unidirectional
    • Many to One - bidirectional
  • Many to Many
    • Many to Many - unidirectional
    • Many to Many - bidirectional

The HQL (Hibernate Query Language)

  • Create record(s) unsing HQL
  • Retrieve record(s) unsing HQL
  • Update record(s) unsing HQL
  • Delete record(s) unsing HQL

Hibernate ORM Caching

  • Overview on Hibernate ORM caching
  • Types of Hibernate ORM Caching
    • First Level Cache - Session
    • Second Level Cache - SessionFactory