All you need to know about Design Patterns

Table Of Content
- Introduction
- 1. Creational Patterns
- 1.1 Factory Design Pattern
- 1.2 Abstract Factory Design Pattern
- 1.3 Builder Design Pattern
- 1.4 Singleton Design Pattern
- 2. Structural Patterns
- 2.1 Adapter Design Pattern
- 2.2 Decorator Design Pattern
- 3. Behavioral Patterns
- 3.1 Strategy Design Pattern
- 3.2 Observer Design Pattern
Introduction
Design patterns are pre-made blueprints that we can use to solve pre-existing and recurring software engineering problems. These are just there to make our code more flexible and efficient.
Design patterns are mainly divided into three groups:
- Creational Patterns - Focuses on object creation to make it flexible and encourage reuse of existing code.
- Structural Patterns - Explains how we can assemble objects and classes together into larger structures while maintaining flexibility and efficiency.
- Behavioral Patterns - Ensures effective communication and distribution of responsibilities between objects.
In this blog, we will focus on some of the most important design patterns, as there are many to explore:
- Creational Patterns: Factory, Abstract Factory, Builder, Singleton
- Structural Patterns: Adapter, Decorator
- Behavioral Patterns: Strategy, Observer
1. Creational Patterns
1.1 Factory Design Pattern
The Factory Design Pattern provides an interface to create objects in a super class but allows subclasses to alter the type of objects that will be created.
For a detailed walkthrough, visit: Factory Design Pattern - A Deep Dive.
1.2 Abstract Factory Design Pattern
The Abstract Factory Design Pattern provides an interface to create families of related or dependent objects without specifying their concrete classes.
For a detailed walkthrough, visit: Abstract Factory Design Pattern - A Deep Dive (Link to be added once published).
1.3 Builder Design Pattern
The Builder Design Pattern allows you to construct complex objects step by step. It separates the construction of a complex object from its representation.
For a detailed walkthrough, visit: Builder Design Pattern - A Deep Dive (Link to be added once published).
1.4 Singleton Design Pattern
The Singleton Design Pattern ensures that a class has only one instance and provides a global point of access to it.
For a detailed walkthrough, visit: Singleton Design Pattern - A Deep Dive (Link to be added once published).
2. Structural Patterns
2.1 Adapter Design Pattern
The Adapter Design Pattern acts as a bridge between two incompatible interfaces, allowing them to work together.
For a detailed walkthrough, visit: Adapter Design Pattern - A Deep Dive (Link to be added once published).
2.2 Decorator Design Pattern
The Decorator Design Pattern allows behavior to be added to an individual object dynamically, without affecting the behavior of other objects from the same class.
For a detailed walkthrough, visit: Decorator Design Pattern - A Deep Dive (Link to be added once published).
3. Behavioral Patterns
3.1 Strategy Design Pattern
The Strategy Design Pattern allows you to define a family of algorithms, encapsulate each one, and make them interchangeable, enabling the algorithm to vary independently from clients that use it.
For a detailed walkthrough, visit: Strategy Design Pattern - A Deep Dive (Link to be added once published).
3.2 Observer Design Pattern
The Observer Design Pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
For a detailed walkthrough, visit: Observer Design Pattern - A Deep Dive (Link to be added once published).
