Prototype pattern in LLD - Architecture Diagram

System Overview - Prototype pattern

The Prototype pattern is a design pattern used to create new objects by copying existing ones, called prototypes. It helps in situations where creating an object from scratch is costly or complex. This system allows cloning objects efficiently to save time and resources.

Architecture Diagram

User
  |
  v
Prototype Manager
  |
  v
Prototype Object(s)
  |
  v
Cloned Object(s)

Components

User

actor

Initiates requests to clone objects

Prototype Manager

service

Stores and manages prototype objects; handles cloning requests

Prototype Object(s)

object

Original objects that serve as templates for cloning

Cloned Object(s)

object

New objects created by copying prototype objects

Request Flow - 4 Hops

User → Prototype Manager

Prototype Manager → Prototype Object(s)

Prototype Manager → Cloned Object(s)

Prototype Manager → User

Failure Scenario

Component Fails:Prototype Manager

Impact:Cloning requests cannot be processed; users cannot obtain cloned objects

Mitigation:Implement redundancy with multiple Prototype Managers or fallback to direct object creation

Architecture Quiz - 3 Questions

Which component is responsible for managing and cloning prototype objects?

A Prototype Manager

B User

C Cloned Object(s)

D Prototype Object(s)

Design Principle

The Prototype pattern demonstrates efficient object creation by cloning existing instances, reducing the cost and complexity of creating new objects from scratch. Managing prototypes centrally allows easy reuse and customization.