Low Level Design & OOP
Design Infinite Scroll for Mutable Data
Asked by:Adobe
interfacesstate_managementobject_modelingextensibilitytesting
Problem Overview & Object Oriented Requirements
Design a client-side infinite-scroll data layer that fetches incrementally, stores loaded data, and remains coherent when the backend dataset changes.
Design Principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, Dependency Inversion (SOLID).
Topics & Patterns: interfaces, state_management, object_modeling, extensibility, testing.
Class Design Breakdown
1. Identify Core Entities
List primary objects, state enums, value objects, and domain controllers.
2. Class Relationships
Define inheritance, composition, aggregation, and interface abstractions.
3. Apply Design Patterns
Incorporate Strategy, Factory, Observer, State, or Decorator design patterns.
4. Concurrency & Extensibility
Handle thread locks, synchronization, and future extensions cleanly.