How to store JSON Data with JPA and Hibernate

Several databases provide varying levels of support for JSON data, including storage, indexing, querying, and manipulation capabilities. In this article we will explore how to insert and fetch JSON Data using Jakarta Persistence API and WildFly.

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Categories jpa

Using Hibernate Annotations in JPA Projects on WildFly

Hibernate annotations play a key role in mapping Java objects to database tables in JPA projects running on WildFly. However, integrating these annotations seamlessly requires proper dependencies and configurations to avoid runtime errors. The Issue with Using Hibernate Annotations in WildFly Hibernate annotations are available in Hibernate core project. Therefore, in order to compile your … Read more

Categories jpa

Writing JPA applications using Java Records

In this article, we’ll explore how Java Records, available since Java 16, can be used in the context of JPA Application. We’ll uncover how Java Records, renowned for their simplicity and immutability, complement the flexibility and expressive querying abilities offered by the Criteria API.

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Categories jpa

How to set a custom initial value for Ids in JPA

In Java Persistence API (JPA), entities require unique identifiers for database records. JPA provides several strategies for generating these identifiers, such as IDENTITY, SEQUENCE, and TABLE. However, there are cases where you might need to set a custom initial value for these identifiers using the Table and Sequence strategy. In this tutorial, we will explore … Read more

Categories jpa

How to set the Boolean default to true in JPA?

Java Persistence API (JPA) is a widely used technology for object-relational mapping in Java applications. While mapping Java objects to database tables, developers often need to set default values for certain attributes, such as boolean fields. In this article, we will explore different approaches to setting default values for boolean fields in JPA entities.

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How to do a Database dump of H2 DB

Using the H2 Database is a common option when developing application prototypes. Once challenge is that, if you are using it as in-memory embedded H2 database , you cannot access the database from outside the JVM. A simple trick is to create a dump of the database, to check the data in all tables In this tutorial we will learn several ways to do that in a standard JPA application and in a Spring Boot application.

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Categories jpa

Understanding JPA Entity life cycle

This article discusses the life cycle of Entity objects in JPA Applications. Understanding the different stages that an Entity goes through is crucial for proper understanding of the JPA framework.

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Categories jpa