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Java 9 Dependency Injection
book

Java 9 Dependency Injection

by Nilang Patel, Krunal Patel
April 2018
Intermediate to advanced content levelIntermediate to advanced
246 pages
6h 11m
English
Packt Publishing
Content preview from Java 9 Dependency Injection

Dependency injection and JSR-330

Before diving into Guice injection, let's look at the DI pattern again, along with JSR-330, in brief. 

A dependency injection mechanism enables an object to pass dependencies to another object. In Java, using DI, we can move dependency resolution from compile time to runtime. DI removes hard dependency between two Java classes; this allows us to reuse class as much as and also classes are  independently testable.

Java Specification Request-330: There is a different way to define dependency in Java classes, but @Inject and @Named are the most common annotations used to describe dependencies in Java classes from JSR-330. According to JSR-330, objects can be injected into the class constructor, the parameter ...

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Publisher Resources

ISBN: 9781788296250Supplemental Content