Currently viewing the tag: "dependency injection"
A couple of people replied to my last article about constructor vs setter injection that they prefer a third option, field injection. This is a slight variant of setter injection in which we magically let the setter dissapear.
So, another blogpost here!
Recently I’ve had a discussion with a collegue about Setter vs Constructor injection. For those who don’t know what I’m talking about a quick example:
Setter injection:
public class SomeClass { private SomeDependency someDependency; public SomeClass() { //Empty constructor } public void setSomeDependency(SomeDependency someDependency) { this.someDependency = someDependency; } }
Constructor injection:
public class SomeClass [...]
Recently I placed a comment on this interesting blog from Uncle Bob Martin (Robert C. Martin). It contains a brief description on how I teach people how to use the Spring Framework.
Now, by popular demand (one person requested it over Twitter), I’ll guide you through the method and examples I use in this blogpost. It explains why people should use frameworks like Spring and/or Google Guice, and how.
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