dependency

Google Guava is an useful library that offers many different but unrelated features: For my Vaadin projects, I like using Event Bus to promote loose coupling along my componentsGuava offers Functional oriented collections handlingThere’s a lightweight Cache implementationetc. However, this article is not about those features but about offering a single heavyweight Uber JAR for all. From Google’s point-of-view, providing an Uber library for all projects makes sense: 'Hey guys, just a

[…​] coupling (or dependency) is the degree to which each program module relies on each one of the other modules. — Wikipedia http://en.wikipedia.org/wiki/Coupling_(computer_science) In object-oriented programming, removing dependencies is done by using interface. Thus, if class A is dependent on class B, we introduce interface C, which is implemented by B. Now A depends on C  (see below). This first step in decoupling is called programming by interface. Anyway, we sti