JPA and Hibernate tutorial

The list of tutorials on ORM, JPA and Hibernate features and best practices

Pre-conditions ❗

You're supposed to be familiar with OOP, have basic knowledge of JDK, and be able to write Java code.

Related information ℹ️

Overview

• Java Persistence with Hibernate 📗
  • 1.1.3 Using SQL in Java. (JDBC API disadvantages)
  • 1.2 The paradigm mismatch. (Object-oriented vs Relational model)
  • 1.3 ORM and JPA. (What are ORM advantages?)
  • 3.1.1 A layered architecture. (What is a persistence (DAO) layer?)
  • 3.1.2 Analyzing the business domain. (What is a domain model?)

JPA and Hibernate basics

• JPA and Hibernate ORM basics tutorial
• A beginner’s guide to entity state transitions with JPA and Hibernate
• Java Persistence with Hibernate 📗
  • 10.1.1 Entity instance states
  • 10.1.2 The persistence context
  • 10.2.1 - 10.2.6 The EntityManager interface. (Entity Create Read Update Remove (CRUD) operations)
  • 10.3.4 Merging entity instances. (What's happening on merge?)

Dirty checking

• "Dirty checking" tutorial
• The anatomy of Hibernate dirty checking mechanism
• Java Persistence with Hibernate 📗
  • 10.2.3 Retrieving and modifying persistent data. (Entity update)

Lazy loading

• Java Persistence with Hibernate 📗
  • 12.1.1 Understanding entity proxies. (One entity lazy loading)
  • 12.1.2 Lazy persistent collections. (Collection lazy loading)
  • 12.2.1 The n+1 selects problem