Android SQLite数据库框架greenDAO 源码

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. **<font size="+1">Home page, documentation, and support links: http://greendao-orm.com/</font>** [](https://travis-ci.org/greenrobot/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](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22de.greenrobot%22%20AND%20a%3A%22greendao%22) [and here](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22de.greenrobot%22%20AND%20a%3A%22greendao-generator%22) 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__](https://github.com/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. [__greenrobot-common__](https://github.com/greenrobot/greenrobot-common) is a set of utility classes and hash functions for Android & Java projects. [Follow us on Google+](https://plus.google.com/b/114381455741141514652/+GreenrobotDe/posts) to stay up to date.