Andrey Belyaev

CORE

Budva, CS

Joined Jul 2018

About

twitter: @belyaev_andrey

Stats

Reputation:	941
Pageviews:	250.8K
Articles:	17
Comments:	1

Articles
Comments

Articles

(Hopefully) The Final Article About Equals and HashCode for JPA Entities With DB-Generated IDs

The article explains how to implement equals/hashCode for JPA entities. It covers common implementations and their potential issues. Find ready-to-use methods at the end.

July 11, 2023

· 8,726 Views · 13 Likes

Dynamic Entity Graphs in Spring Data JPA

In this article, we will talk about JPA entity graphs and a library that enables the generation and application of entity graphs dynamically.

July 7, 2023

· 6,085 Views · 5 Likes

Testing Applications With JPA Buddy and Testcontainers

Testcontainers allows us to create a production-like environment for integration testing. Review the most popular case: testing an application’s services and data access layer.

May 17, 2023

· 3,357 Views · 4 Likes

An Entity to DTO

DTO is probably the most straightforward pattern in object-oriented programming. In this post, learn how to create them properly and the motives for using DTOs.

December 27, 2022

· 7,130 Views · 3 Likes

Spring Data JPA To Spring Data JDBC: A Smooth Ride?

Spring Data JPA replacement with Spring Data JDBC may be a tricky task. In this post, have a look at tips, tricks, and traps waiting for you along the way.

Updated November 3, 2022

· 5,476 Views · 4 Likes

Spring Data JPA Interview Questions and Answers

One of the most popular starters in Spring Boot applications is Spring Data JPA. Hence, you have nearly no chance to avoid JPA-related questions during a job interview. Let's take a look at the most frequently asked questions with detailed answers.

August 20, 2022

· 8,025 Views · 6 Likes

How to Store Text in PostgreSQL: Tips, Tricks, and Traps

In this article, we will review various options to store long text in the PostgreSQL database: @Lob attributes, TEXT, and long VARCHAR table columns. Also, we'll have a look at the difference between Hibernate 5 and 6 in storing long text data.

July 7, 2022

· 18,897 Views · 8 Likes

Synchronization Methods for Many-To-Many Associations

This article describes some edge cases when we implement many-to-many bidirectional associations in JPA and try to synchronize data in entities on both ends.

Updated May 14, 2022

· 4,592 Views · 9 Likes

The Ultimate Guide on Composite IDs in JPA Entities

This article describes composite IDs in JPA and how to treat them properly. It covers both @EmbeddableID and @IdClass cases and reviews their difference.

Updated March 21, 2022

· 4,262 Views · 10 Likes

The Ultimate Guide on Client-Generated IDs in JPA Entities

ID generation on the client-side is not as simple as it seems. In JPA and Hibernate, we can use UUIDs, custom strategies, and dedicated ID generation servers.

February 24, 2022

· 5,434 Views · 6 Likes

The Ultimate Guide on DB-Generated IDs in JPA Entities

"Just annotate a JPA entity's ID field with @Id and allow the DB to care about the rest!". Well, in some cases, defaults should be altered. In this article, we will see how altering the ID generation strategy can affect your app performance.

January 13, 2022

· 13,297 Views · 6 Likes

The Data Access Layer in Jmix: JPA on Steroids

With Jmix JPA metadata, you get advanced security, soft delete and generic REST and GraphQL out-of-the-box almost without coding.

Updated March 23, 2021

· 5,560 Views · 17 Likes

Jmix: The Future of the CUBA Platform

New year, new CUBA.

December 30, 2020

· 4,356 Views · 7 Likes

To Delete or to Soft Delete, That Is the Question!

Soft delete is a widely used pattern in business applications. We will talk about its pros and cons and common challenges faced during implementation.

August 28, 2020

· 15,950 Views · 20 Likes