What is an annotation processor? It's code that writes code. In fact, you may have already used an annotation processor, such as Immutables or Dagger. For example, you can annotate an interface with ...

To generate the mapper with MapStruct, simply add the @Mapper annotation to the model object. This project is a Spring Boot application that provides RESTful APIs for handling annotations. It uses ...

Learn how to use Java annotations to associate metadata with classes, methods, and other application elements in your Java programs. There are times when you need to associate metadata, or data that ...

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 ...