Overview

The idea behind Kundera is to make working with NoSQL Databases drop-dead simple and fun. Kundera is being developed with following objectives:

• To make working with NoSQL as simple as working with SQL
• To serve as JPA Compliant mapping solution for NoSQL Datastores.
• To help developers, forget the complexity of NoSQL stores and focus on Domain Model.
• To make switching across data-stores as easy as changing a configuration.

[Downloads] (https://github.com/impetus-opensource/Kundera/wiki/Kundera-releases "Downloads")

Up and running in 5 minutes

If you have worked upon Hibernate or any JPA Compliant ORM Solution, then the whole process, right from learning to coming up with first sample implementation will not take more than 5 minutes. Please follow below steps from [this link] (https://github.com/impetus-opensource/Kundera/wiki/Getting-Started-in-5-minutes "Getting started in 5 minutes"):

• Set up Cassandra server.
• Download and include Kundera Jar
• Write persistence.xml file
• Write Entity class
• Moment of Truth!

Currently Supported Datasources

• Cassandra
• MongoDB
• HBase
• Relational databases

Recent Releases

20-Apr-2012 - Kundera 2.0.6 released

This release includes bug fixes and the following new features compared to version 2.0.5:

• HBase 0.90.x migration.
• Enhanced Persistence Context.
• Named and Native queries support (including CQL support for cassandra)
• UPDATE and DELETE queries support.
• DDL auto-schema creation.
• Performance improvements.

06-Feb-2012 - Kundera 2.0.5 released

This release includes bug fixes and the following new features compared to version 2.0.4:

• Cassandra 1.x migration.
• Support for Many-to-Many relationship (via Join table)
• Transitive persistence.
• Datastore native secondary index support in addition to Lucene based indexing. An optional switch provided to change between two.
• Query support for >, < , >=,<=,!=, like, order by, like, logical operators and between.
• Connection pooling settings provided for all datastores.
• Support for all data types as required by JPA.
• Range queries for cassandra (via between clause in JPA-QL)
• Bug fixes related to self join.

09-Dec-2011 - Kundera 2.0.4 released

This release includes bug fixes, performance improvements and the following new features compared to version 2.0.3:

• Cross-datastore persistence.
• Support for relational databases.
• Moved out solandra and replaced with lucene.

08-Aug-2011 - Kundera 2.0.3 released

This release includes bug fixes and the following new features compared to version 2.0.2:

• Cassandra 0.8.x support added

31-July-2011 - Kundera 2.0.2 released

This release includes bug fixes and the following new features compared to version 2.0.1:

• Kundera is now JPA 2.0 compliant.
• Embedded objects/ collections support for HBase.

12-July-2011 - Kundera 2.0.1 released

This release includes bug fixes and the following new features compared to initial revision:

• Cassandra 0.7.x support added
• @Embedded annotation fields persisted co located with parent entity
• Search within embedded objects.
• Selective index.

[Downloads] (https://github.com/impetus-opensource/Kundera/wiki/Kundera-releases "Downloads")

Builds

This project is .

The public CI instance is available at https://impetus-opensource.ci.cloudbees.com/job/kundera-github/

About Us

Kundera is backed by Impetus Labs - iLabs. iLabs is a R&D consulting division of Impetus Technologies (http://www.impetus.com). iLabs focuses on innovations with next generation technologies and creates practice areas and new products around them. iLabs is actively involved working on High Performance computing technologies, ranging from distributed/parallel computing, Erlang, grid softwares, GPU based software, Hadoop, Hbase, Cassandra, CouchDB and related technologies. iLabs is also working on various other Open Source initiatives.