Saturday, May 11, 2019

Top 5 Hibernate and JPA Courses for Java Developers to Learn Online

Hibernate is one of the essential frameworks for Java and Java EE or JEE programmers, especially if you are working on the server side of a Java Web development project. It's an ORM tool or a framework which allows you to deal with only objects while Hibernate takes care of your data on your behalf. For example, instead of writing classes with SQL to load, save, and update data using the DAO design pattern, you can simply use the Hibernate framework in your project. It will allow you to deal with just objects while it will load, save, and update data in the background. It's also one of the top Java frameworks in my list of top 10 Java frameworks Programmers can learn.

Instead of you loading and saving data to/from the database and then populating objects, Hibernate just gives you a readymade object and also takes care of updating data when the state of object changes into the database.

Btw, this is just one benefit of using Hibernate, another important one is that it provides inbuilt caching. Hibernate maintains a couple of caches like first level, second level, and query cache, which can hold frequently used data to improve the performance of your Java application.

You don't need to worry about data getting scale or cache growing bigger and bigger, Hibernate can manage both Cache eviction and how to keep it up-to-date. If you only use Hibernate to touch your data then it will always be up-to-date.

The use of Hibernate also makes your application more portable, for example, if tomorrow, your company decides to switch to Oracle from Microsoft SQL Server, or MySQL to PostgreSQL, you don't need to re-write any SQL query.

All you need to do is change the SQL dialect in Hibernate configuration file and you are done. Had you have opted for writing Data Access Object and SQL, you would have to re-write most of your SQL to port your application from one database to another.

I had this experience in the past when we moved from Oracle to SQL Server and had to spend considerable time re-writing stuff which I didn't want. Btw, if you have to do the same move, see here to learn about how I ported some of the SQL queries from Oracle to SQL server.

On a similar note, you don't need to tightly couple your code to Hibernate, you can use JPA (Java Persistence API), a standard API for persistence layer of Java application. Hibernate is just one implementation of JPA and if your company switch to another implementation like TopLink then you can easily switch to that if you use JPA APIs.

5 Online Courses to Learn Hibernate and JPA for Java Developers

I have been sharing some useful resources for Java developers and this is the second article in the series of learning essential frameworks for Java developers.

In the past, I have shared online courses to learn Spring framework and today I'll share some of the useful Hibernate and JPA courses for Java developers. You can take these training courses from the comfort of your home and office to learn these important technologies at your own pace.

Given the importance of Hibernate and JPA, it's useful for Java developers to learn these APIs and framework. It will not only make your Resume more attractive but also makes you eligible for several jobs which looks for Java developers with Spring and Hibernate experience.

1. Java Persistence: Hibernate and JPA Fundamentals
If you are a Java programmer who wants to learn the Hibernate and JPA fundamentals and some of the advanced topics of Java Persistence with Hibernate, then this is the right course for you.

In this course, you will learn Hibernate 4.3.5. Final (and applicable updates for Hibernate 5.0), and learn how to use Hibernate as a JPA provider.

You'll also be learning the fundamentals and some of the advanced JPA features for object/relational mapping, querying, caching, performance and concurrency.

best JPA and Hibernate course for Java programmers

2. Hibernate and Java Persistence API (JPA) Fundamentals
This one is another great course to learn the basics of Hibernate and JPA. This online training course will teach you the object-relational mapping and Hibernate basics.

You will learn about fundamentals like get vs load or when to use save vs persist or saveOrUpdate method in Hibernate. After that, you will learn about basic mapping annotations, mapping composite and collection types, and entity associations. This video tutorial also covers Hibernate API, JPA API, advanced mapping and configurations, and criteria API.

The course will also cover the Hibernate query language and Java Persistence query language, which allows you to specify SQL in a database vendor independent way.

hibernate training courses for Java developers

3. Master Hibernate and JPA with Spring Boot in 100 Steps
This is one of the hands-on course to learn the fundamentals of Java Persistence API (JPA) and Hibernate framework using Spring and Spring Boot. You will learn the basics of JPA and Hibernate - Entities, Relationships, Inheritance Mappings, and Annotations.

It also covers JPA and Hibernates Relationships in-depth - One to One, Many to One and Many to Many and different approaches to querying data using JPA and Hibernate - JPQL, Criteria API and Native Queries.

You will also learn about Caching and the basis of performance tuning your JPA application with Hibernate - Solve N+1 Queries Issues.

hands on hibernate online courses for java developers

4. Hibernate Fundamentals: Hands-On Primer With Java EE and JPA
This is another good online Hibernate training course which provides a complete introduction to the Hibernate and concept of Object Relational Mapping (ORM).

You will also learn how to use Hibernate to write Java applications that connect to a relational database.

The course also explains about essential JPA annotations that let you map classes to relational models. In short, you will learn how to install, configure and build Java programs within Hibernate environment

best hibernate online courses for java developers

Sometimes for beginners, learning Hibernate can be difficult because its a very large framework and there are many important concepts to understand in order to use it effectively in a real-world project.

This course is designed to make the getting started with Hibernate as easy as possible and focus on the most important things you need to know first. 

The course starts with the basic introduction of Hibernate and how it works and then goes on to explain how to setup Hibernate with a real MySQL database installation.

After that, you learn the very basics of mapping, which is one of the most important things to understand about Hibernate.

It not only covers basic one-to-one mappings but also covers some of the complex mapping situations like mapping collections and different relational mappings like one-to-many and many-to-one.

Top 5 Hibernate and JPA Courses for Java Programmers

It will also teach you how to use Hibernate's built-in HQL and use a more object-oriented approach with the Criteria API.

In the end, you will learn about more advanced features like caching and interceptors, which are important for experienced Java developers. 

That's all about some of the best courses to learn Hibernate and JPA online. Java and JEE developers can take these courses to master these two persistence technologies for Java application. Having Hibernate and JPA in your resume will make you eligible for many Java Web Developer roles where company look for Spring and Hibernate experience.

Btw, if you already know Hibernate and JPA and looking for an advanced course to take your knowledge of Hibernate and JPA to next level then I suggest to check out High-Performance Java Persistence and Hibernate by Vlad Mihalcea, a Java Champion and one of the top Hibernate ORM project committers to understand inner working of database and frameworks to improve performance of enterprise application.

By the way, If you haven't learned the Spring framework yet, you may want to check out my list of courses to learn Spring after Hibernate.

Other useful resources for Java developers
Thanks for reading this article so far. If you like Hibernate and found these courses useful then please share on Facebook and social network with your friends and colleagues.  If you have any questions or feedback then please drop a note.

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