A deep dive into unit testing in Go
In this tutorial, we’ll cover how to write unit tests in Go using the built-in testing package and several external tools. By the end of this article, you’ll understand concepts…
Jersey and HK2 dependency injection (auto scanning)
This article shows how to use HK2 dependency injection framework in Jersey and enable auto-scanning auto-discovery of the declared @Contract and @Service components. Jersey, by default, uses HK2 (Hundred-Kilobyte Kernel)…
Constructor injection type ambiguities in Spring
In Spring framework, when your class contains multiple constructors with same number of arguments, it will always cause the constructor injection argument type ambiguities issue. To fix it, you should…
Spring 3 and JSR-330 @Inject and @Named example
Since Spring 3.0, Spring supports for the standard JSR 330: Dependency Injection for Java. In Spring 3 application, you can uses standard: 1 - @Inject instead of Spring’s @Autowired to…
Spring DI via setter method
A simple Spring example to show you how to dependency inject a bean via setter method, the most common used DI method.
Spring Dependency Injection (DI)
In Spring frameowork, Dependency Injection (DI) design pattern is used to define the object dependencies between each other. It exits in two major types : 1 - Setter Injection -…
Spring loosely coupled example
The concept of object-oriented is a good design to break your system into a group of reusable objects. However, when system grows larger, especially in Java project, the huge object…
Global Variables and States: Why So Much Hate?
Global variables. Global states. These words induce fear and pain in every developer’s heart who had the unfortunate experience to deal with them. Did you already fight against applications behaving…