Read replicas and Spring Data Part 4: Configuring the read repository

Previously we set up two EntityManagers in the same application. One for the reads and one for the writes. Now…

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Pagination and Sorting with Spring Data JPA

Learn Pagination and Sorting with Spring Data JPA with code examples. Understand how to get Paginated and Sorted results using…

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How to map PostgreSQL Enums to JPA entity properties using Hibernate

Introduction The open-source hibernate-types project allows you to map JSON, ARRAY, YearMonth, Month or database-specific columns (e.g. INET addresses). In…

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Restful API using Spring Rest & Spring Data JPA & H2 with Spring Boot Example

Hello Friends, In this tutorial, you will learn the following : 1. Configuring Spring Rest, Spring Data JPA and H2…

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Spring Data JPA with central exception handling and VO validations – framework

1. Introduction Over the time, Spring framework became the de-facto standard to create any applications that are REST API based.…

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OpenLiberty: Error on Injection, works on TomEE and Wildfly

While I was working on this blog, I encountered this error: [INFO ] DSRA8203I: Database product name : MySQL [INFO…

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Exact Matching of a String Containing a Wild Card in QueryDSL

On one of our recent projects, our client asked for a single search field that would be able to search…

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Spring Data JPA Tutorial

Managing data between java classes or objects and the relational database is a very cumbersome and tricky task. The DAO…

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Automatic save of managed JPA entities outside of transaction

Repositories and transactions in Spring go hand in hand. All database access in Spring should be run inside a transaction,…

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