greenrobot/greenDAO
GreenDAO
greenDAO is an object-relational mapping library for Android that maps Java objects to SQLite databases. It provides infrastructure for high-performance data persistence by translating data objects into database records and vice versa.
The library implements a type-safe query builder for retrieving records across multiple entities using joins and relationship chaining. It also includes a security layer that provides full-disk encryption for the SQLite database to prevent unauthorized access to stored information.
The system utilizes compile-time code generation to create mapping classes, avoiding the use of runtime reflection. It manages local data storage through schema-based object mapping where Java entity classes define the database structure.
Features
- Object Relational Mapping - Implements an object-relational mapping system to translate Java objects into SQLite database records.
- Object-Relational Mapping - Simplifies interaction between application objects and relational databases to accelerate Android development.
- SQLite Storage Adapters - Utilizes a local SQLite database as the primary storage engine for relational data.
- Object Mappings - Defines the database structure through Java entity classes that serve as the source of truth for tables.
- Android SQLite Management - Manages SQLite persistence on Android by mapping objects to database records without raw SQL.
- Compile-Time Code Generation - Generates Java DAO classes at build time to eliminate the need for runtime reflection.
- Reflection-Free Runtime Execution - Uses generated setter methods instead of reflective lookups for high-performance data retrieval.
- Local Database Security - Secures sensitive user data on Android devices through full encryption of the local SQLite database.
- Type-Safe Query Builders - Provides a type-safe query builder for retrieving records across multiple entities using joins.
- Encrypted Database Managers - Includes a security layer for managing full encryption of the SQLite database file.
- Database Page Encryption - Provides full-disk encryption for the SQLite database by encrypting all pages before writing to disk.
- Storage Encryption - Applies full encryption to the stored SQLite database file to prevent unauthorized access.
- Database ORM - Optimizes object-relational mapping for high performance and low memory.
- Persistence - Light and fast ORM solution.
