Contexts and Dependency Injection for Java EE (CDI) 1.0 was introduced as part of the Java EE 6 platform, and has quickly become one of the most important and popular components of the platform. CDI defines a powerful set of complementary services that help improve the structure of application code …
When it comes to client-server communication, WebSockets can provide some of the highest levels of interaction. In this presentation, we’ll discuss what WebSockets are, why you might want to use them, and how you would go about doing it. In addition to looking at the Java API, we’ll take a …
This talk wants to demonstrate how object-oriented principles can only get you so far in simplifying your Java design. Starting with a clean yet completely imperative code base written in Java, I will explain how we can improve the code by applying functional principles—primarily extracting functions as objects and passing …
This video discusses what is new in Spring 4 and Spring Boot and how that may affect your Vaadin applications. Petter Holmström and Joshua Long share their experiences and latest integration examples. Petter is the Vaadin Architect having experience from working with large and small enterprise applications world-wide.
JSR 331: Constraint Programming API became an official JCP standard in March 2012. This specification defines a Java runtime API for constraint programming. The Constraint Programming API prescribes a set of fundamental operations used to define and solve constraint satisfaction and optimization problems.
This video explains how to use the Java Persistence Query Language (JPQL) to query an object model. It explores JPQL basics and discusses the risk of SQL Injection. The Java Persistence query language defines queries for entities and their persistent state. The query language allows you to write portable queries …
