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Arnold Galovics

Being a good software engineer is 3% talent, 97% not being distracted by the internet.

Tag: hibernate

Deploying a simple Spring Boot with MySQL app to AWS using Elastic Beanstalk

 January 7, 2019January 7, 2019

There is no doubt that AWS is still a hot topic in 2019 so I felt that I should write something useful to get started with exploring it’s capabilities. In Continue reading

 1 Comment Tagsaws, aws-eb, aws-ec2, aws-rds, database, hibernate, jpa, mysql, spring, spring-boot, spring-data, spring-data-jpa, spring-mvc

Encrypting JPA entity attributes using listeners in Spring

 October 8, 2018November 22, 2018

In 2018, it’s mandatory to think about security for every application which stores personal data. When it comes to this topic, you can’t be 100% sure that the application has Continue reading

 17 Comments Tagshibernate, jpa, spring, spring-boot, spring-core

Pessimistic locking in JPA/Hibernate

 September 19, 2018

There are two ways to deal with concurrency conflicts, optimistic locking and pessimistic locking. Implicit optimistic locking has been already covered, if you didn’t have the chance to read my Continue reading

 Leave a comment Tagsconcurrency, hibernate, jpa, locking, pessimistic, pessimistic-locking, spring, spring-boot, spring-core

Optimistic locking in JPA/Hibernate

 August 22, 2018

The applications written today most of the time involves handling multiple users at the same time. With this requirement in place it’s mandatory to understand the possibilities for handling concurrency Continue reading

 6 Comments Tagsconcurrency, hibernate, java, jpa, locking, optimistic, optimistic-locking, spring, spring-boot

How much projections can help?

 July 10, 2017May 25, 2018

For one of my presentations, I wanted to have some numbers regarding the efficiency of projections. If you don’t know what projections are, read this previously written article. I basically Continue reading

 2 Comments Tagshibernate, jpa, measurement, performance, spring, spring-data, spring-data-jpa

Using projections in your data-access layer

 March 14, 2017

If you care about your data-access layer to make it as fast as possible, you should consider using projections for reading data. Check a simple example together. We have cities Continue reading

 2 Comments Tagshibernate, java, jpa, spring, spring-data, spring-data-jpa, sql

LazyInitializationException demystified

 February 27, 2017

Are you a Hibernate user? Have you ever got a LazyInitializationException? Let’s clarify this topic a bit. You can find plenty of solutions for the exception, however they lack explanation and Continue reading

 2 Comments Tagsdatabase, hibernate, java, jpa, lazy-loading

Session level Hibernate JDBC batching

 June 9, 2016July 6, 2016

Quite some time ago, I had a chance to try out one of the coolest features of Hibernate when I had to insert and update multiple entities. By multiple, I mean Continue reading

 7 Comments Tagsdatabase, hibernate, java, spring

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