What are Room's three main components and their functions?
Tests whether you know Room's architectural layers. Name the three: Database holds config and is the access point; Entity represents a table schema; DAO defines SQL operations. Red flag: confusing DAOs with Repositories or claiming Room is a full ORM.
This tests whether you understand Room's architectural separation of concerns, not just copy-paste integration. A strong answer names the three pieces: the Database class serves as the holder and main access point for the underlying SQLite database; the Entity represents a table schema where each instance is a row; and the DAO interface defines clean methods for SQL operations, validated at compile time. Red flag: conflating DAOs with Repositories, omitting the Database class, or describing Room as a full ORM rather than an abstraction layer.
Read the original → developer.android.com
- #android
- #room
- #sqlite
- #persistence
- #architecture-components
Get five bites like this every day.
Tezvyn delivers a daily feed of 60-second tech bites with quizzes to lock in what you learn.