Java - Dependency Injection (DI)

1 - About

Dependency injection in Java.

This page is about injection of a java dependency in a class.

3 - Library

4 - Specification

4.1 - JSR 330: Dependency Injection for Java

The standard Java annotations for describing the dependencies of a class are defined in the Java Specification Request 330 (JSR330).

This specification describes the following annotations:

  • @Inject
  • and @Named

4.2 - JSR-299 - Contexts and Dependency Injection (CDI)

Contexts and Dependency Injection (CDI) is specified by JSR-299

It's a programming model. Dependency injection is when the EJB container automatically supplies (or injects) a variable or setter method in the bean file with a reference to another EJB or resource or another environment entry in the bean's context.

Bean files supports dependency injection.

Implementation. See weld with Vertx


Data Science
Data Analysis
Statistics
Data Science
Linear Algebra Mathematics
Trigonometry

Powered by ComboStrap