Please help us with this short survey: http://bit.ly/greendao-survey Thanks for your support!

greenDAO

greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases. Being highly optimized for Android, greenDAO offers great performance and consumes minimal memory.

Home page, documentation, and support links: http://greenrobot.org/greendao/

Features

greenDAO has a unique set of features:

Rock solid: greenDAO has been around since 2011 and is used by countless famous apps
Super simple: concise and straight-forward API
Small: The library is <100K and it's just plain Java jar (no CPU dependent native parts)
Fast: Probably the fastest ORM for Android, driven by intelligent code generation
Safe and expressive query API: QueryBuilder uses property constants to avoid typos
V2.0.0 Powerful joins: query across entities and even chain joins for complex relations
V2.0.0 Flexible property types: use custom classes or enums to represent data in your entity

Add greenDAO to your project

greenDAO is available on Maven Central. Please ensure that you are using the latest versions by checking here and here

Gradle dependency for your Android app:

    compile 'de.greenrobot:greendao:2.0.0'

Gradle dependency for your Java generator project:

    compile 'de.greenrobot:greendao-generator:2.0.0'

Features in Beta

Those features are already here for you to try out. Note: Documentation and test coverage may be lacking, and the API may change in the future.

Asynchronous API

New AsyncSession (acquired from DaoSession.startAsyncSession()) provides most operations for DAOs, Queries, and transactions in a asynchronously variant
AsyncOperations are processed in order by a background thread
waitForCompletion methods for AsyncSession and AsyncOperations
AsyncOperationListener for asynchronous callback when operations complete
Asynchronous operations can be merged in single transactions (details follow)
Added raw SQL queries returning a Query object (LazyList support etc.)

More Open Source by greenrobot

EventBus is a central publish/subscribe bus for Android with optional delivery threads, priorities, and sticky events. A great tool to decouple components (e.g. Activities, Fragments, logic components) from each other.