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greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases.

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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://greendao-orm.com/

Build Status

Upcoming features (already available in beta quality)

New features ahead for the brave: documentation and test coverage may be lacking. Give it a shot if you dare. 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.

greenrobot-common is a set of utility classes and hash functions for Android & Java projects.

Follow us on Google+ to stay up to date.

Release History

Future release

  • Added Flag for AsyncOperation to track the caller's stacktrace (useful for debugging)

Generator V1.3.1 (2014-05-24): Bugfix

  • Fix schema version >= 1000

V1.3.7 (2013-11-27): Bugfix

  • Fixed building defect DeleteQuery for tables ending with character 'T' (bug introduced in 1.3.3)
  • Prepared Fast Cursor for API level 19

V1.3.6 (2013-11-15): Bugfix

  • Fixed leaked statement in DeleteQuery

V1.3.5 (2013-11-14): Bugfix

  • Because of an issue with ApplicationTestCase, the base test class DbTest does not extend this class anymore. Note: This refactoring may require you to adjust some test classes if your tests depend on DbTest or its subclasses.

V1.3.4 (2013-10-28): Bugfix

  • Redeployment of 1.3.3 artifacts without some old class leftovers

V1.3.3 (2013-10-18): Bugfix

  • Fixed a memory leak affecting Query class that was introduced in 1.3.0 (#93)
  • Fixed a rare race condition that can lead to "Entity is detached from DAO context" DaoException (#101)

V1.3.2 (2013-08-28): Bugfix

  • Fixed building CountQueries with combined AND/OR conditions
  • Some secret inoffical work in progress

V1.3.1 (2013-03-02): Fixed Gradle dependencies

  • Don't use Gradle's "compile" dependency scope

V1.3.0 (2013-02-24): Multithreading robustness and refactoring (breaking changes!)

  • Reworked internal locking of insert/update/delete methods
  • Fixed potential deadlocks when transactions are executed concurrently to one of the various insert/update/delete calls
  • Reworked queries to be used without locking, query instances are now bound to their owner thread (breaking change!)
  • Relations use the new lock-free query API
  • Query classes were moved into the new query subpackage (breaking change!)
  • Introduced Gradle build scripts for DaoCore and DaoGenerator projects
  • Maven artifacts are pushed to Maven Central starting with this version
  • Added two packages for classes used internally (identityscope and internal)
  • Added new deleteByKeyInTx DAO method to efficiently delete multiple entities using their keys
  • Added some checks to throw exceptions with nicer messages telling what's wrong
  • Added Travis CI

V1.2.0 (2012-06-08): Feature release

  • Limited support of String PKs (no relations using String FKs yet)
  • Fixed index creation (please update your schema)
  • Added CountQuery for creating SELECT COUNT (*) queries with QueryBuilder
  • Added getDatabase in DaoMaster, DaoSession, and Dao
  • Added insertOrReplaceInTx in Dao
  • Added deleteInTx in Dao
  • Added autoincrement() creating AUTOINCREMENT PKs
  • Made DAOs and DaoSessions in active entities transient (allows serialization of entities)
  • Minor fixes

V1.1.2 (2012-03-26): ADT 17 support for demo project

  • Demo projects works with ADT 17 (moved greendao.jar into libs)
  • CREATE/DROP TABLE may be skipped for entity types: This allows having multiple entity types operate on the same table
  • Minor improvements

V1.1.1 (2012-02-14): Mini bugfix&feature release

  • Added NOT IN condition for QueryBuilder
  • Fix for Roboelectric (Issue #22)
  • Minor fix (Issue #5)

V1.1.0 (2012-02-13): Feature release

  • DeleteQuery for bulk deletes
  • Entities may implement Java interfaces
  • Entities may extend a Java class
  • Added LIMIT and OFFSET support for QueryBuilder and Query
  • Convenience methods to add named relationships
  • SQL scripts are executed in a transaction by default
  • Fixed queries with special column names (SQL keywords)
  • Changed default names for to-many relations to end with "List"
  • ORDER BY uses LOCALIZED collation for strings by default

V1.0.1 (2011-10-30): Bugfix release

  • Fixed generation of to-many relations
  • Fixed generated import statements when entities/DAO are not in the same package

V1.0.0 (2011-10-24): First open source release

  • To-many relations (lazily loaded on the entities)
  • To-many relations with custom join properties
  • Active entities can be updated, refreshed, and deleted directly
  • Significant performance improvements (faster identity scope, faster database result parser)
  • "Keep sections" for custom code in entities were added that won't be overwritten during code generation
  • Other minor improvements

Third preview (2011-08-19)

http://greendao-orm.com/2011/08/19/query-builder-and-lazy-loading-lists/

Second preview (2011-08-12)

http://greendao-orm.com/2011/08/12/greendao-2nd-preview/

First public release (2011-08-04)

http://greendao-orm.com/2011/08/04/greendao-public-release/

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greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases.

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