Tag: Java EE

Using Java Bean Validation for Method Parameters and Return Values

By Alejandro Gervasio, June 01, 2017

Validate arguments and return values of methods and constructors with Bean Validation's ExecutableValidator and automate it with Java EE interceptors.

Using CDI/Weld to Inject JPA/Hibernate Entity Managers

Java

By Alejandro Gervasio, January 30, 2017

A tutorial on how to use Contexts and Dependency Injection (CDI) / Weld and Hibernate in the development of a full-blown JPA application.

Introduction to Contexts and Dependency Injection (CDI)

Java

By Alejandro Gervasio, December 19, 2016

A tutorial on how to use Contexts and Dependency Injection (CDI) and Weld in Java SE, covering core features like annotations, qualifiers, and producers.

Building a Web App with Java Servlets

Java

By Alejandro Gervasio, October 10, 2016

This tutorial builds a simple Java web application with Java's Servlet API. It shows how to set the project up, create views / controllers, and deploy.