MaskMe is a modern, annotation-based Java library for dynamically masking sensitive data in objects. It supports both regular Java classes and Java Records, with conditional masking based on runtime ...

Java annotations were designed for metadata. Spring uses them for dependency injection. Lombok uses them for code generation. JPA uses them for ORM mapping. We use them to write entire programs. This ...

However, if you want to customize the way a field maps to a database column, you can decorate a property with the @Column annotation. Along with the name property, the JPA @Column annotation can ...

Community driven content discussing all aspects of software development from DevOps to design patterns. I recently published an article about how to build a zero-configuration Struts Hello World ...

This post is part of series on Java and Spring backend microservice development. Also I’d like to mention this post is not a cookbook and doesn’t provide a perfect solution for any business problem.

Before Spring introduced custom annotations, developers had to manage configurations like email validation using XML configuration files. The XML configuration would define beans, validators, and ...

The first half of this introduction to Java inheritance teaches you how to use the extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, and ...

The Jakarta Persistence API (JPA) is a Java specification that bridges the gap between relational databases and object-oriented programming. This two-part tutorial introduces JPA and explains how Java ...