ea57934db6
* Moves converter pattern to Java 11 * Moves cqrs pattern to Java 11 * Moves dao pattern to Java 11 * Moves data-bus pattern to Java 11 * Moves data-locality pattern to Java 11 * Moves data-mapper pattern to Java 11 * Moves data-transfer-object pattern to Java 11 * Moves decorator pattern to Java 11 * Moves delegation pattern to Java 11 * Moves dependency-injection to Java 11 * Moves dirty-flag to Java 11 * Moves double-buffer to Java 11 * Moves double-checked-locking to Java 11 * Moves double-dispatch to Java 11 * Corrects with changes thats breaking test cases
layout, title, folder, permalink, categories, tags
| layout | title | folder | permalink | categories | tags | |
|---|---|---|---|---|---|---|
| pattern | Dependency Injection | dependency-injection | /patterns/dependency-injection/ | Creational |
|
Intent
Dependency Injection is a software design pattern in which one or more dependencies (or services) are injected, or passed by reference, into a dependent object (or client) and are made part of the client's state. The pattern separates the creation of a client's dependencies from its own behavior, which allows program designs to be loosely coupled and to follow the inversion of control and single responsibility principles.
Class diagram
Applicability
Use the Dependency Injection pattern when
- when you need to remove knowledge of concrete implementation from object
- to enable unit testing of classes in isolation using mock objects or stubs