A beginner’s guide to JPA/Hibernate entity state transitions

Introduction Hibernate shifts the developer mindset from SQL statements to entity state transitions. Once an entity is actively managed by…

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Hibernate hidden gem: the pooled-lo optimizer

Introduction In this post we’ll uncover a sequence identifier generator combining identifier assignment efficiency and interoperability with other external systems…

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From JPA to Hibernate’s legacy and enhanced identifier generators

JPA identifier generators JPA defines the following identifier strategies:                 Strategy Description AUTO…

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Using @NamedEntityGraph to load JPA entities more selectively in N+1 scenarios

The N+1 problem is a common issue when working with ORM solutions. It happens when you set the fetchType for…

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Hibernate and UUID identifiers

Introduction In my previous post I talked about UUID surrogate keys and the use cases when there are more appropriate…

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Hibernate Debugging – Finding the origin of a Query

It’s not always immediate why and in which part of the program is Hibernate generating a given SQL query, especially…

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Pitfalls of the Hibernate Second-Level / Query Caches

This post will go through how to setup the Hibernate Second-Level and Query caches, how they work and what are…

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A beginner’s guide to Hibernate Types

The basic mapping concepts When learning Hibernate many like to jump to parent-child associations without mastering the object relation mapping…

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The minimal configuration for testing Hibernate

Introduction In my previous post I announced my intention of creating a personal Hibernate course. The first thing to start…

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