Notes / Low Level Design / 04 Dependency Management / 1 Dependency Injection

1 — Dependency Injection

Compares constructor, setter, and interface injection as ways to supply an object's dependencies from outside itself rather than constructing them internally.

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1 — Dependency Injection

Purpose

[stub: dependency-injection]

Planned coverage:

  • Constructor Injection
  • Setter Injection
  • Interface Injection

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AuthorAmit Singh
Scopelow-level-design

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Related notes

2 — Inversion of Control

Explains how inverting control of object creation and lifecycle from application code to a framework or container reshapes dependency flow in a design.

3 — Service Locator vs DI

Contrasts the service locator pattern with dependency injection, weighing hidden dependency lookups against explicit, visible constructor contracts.

4 — Object Factories

Covers factory patterns that encapsulate object construction logic and decouple it from the code that consumes the resulting objects.

Low-Level Design for MAANG Interviews

A book-shaped table of contents for LLD interview prep: OOP fundamentals through SOLID, design principles, UML, design patterns, dependency management, reliability, concurrency, domain modeling, API design, testing, refactoring, classic interview problems, advanced architecture, and performance — cross-linking Object-Oriented Programming and Patterns instead of duplicating them.
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