JPOX 1.1.8 / 1.2.0 Beta 3

JPOX is a free and fully compliant implementation of the JDO 1.0 and 2.0 specifications, providing transparent persistence of Java objects.
JPOX supports persistence to all of the major RDBMS on the market today, supporting all of the main Object-Relational Mapping (ORM) patterns demanded by todays applications, allows querying using either JDOQL or SQL, and comes with its own byte-code enhancer.
JPOX is available under an Open Source Apache 2 license, allowing access to not just a top quality Java persistence implementation but also to the source code, allowing you to contribute to the success story of the principal Open Source JDO implementation in the world today.
JPOX 1.0 implements the JDO 1 specification and passes the JDO 1 TCK. JPOX 1.1 (currently under development) extends the JPOX 1.0 capabilities to implement the JDO 2 specification.
JPOX 1.1 will become the JDO 2 Reference Implementation with its 1.1-final release. JPOX will be updated in future to also implement any EJB3 specification of Java persistence.
Whats New in 1.1.8 Stable Release:
- A bug has been fixed for attaching a CompoundIdentity 1-N relation.
- A bug has been fixed in the deletion of an embedded Collection.
- Improvements were made to the available SQL types for a datastore.
- Handling was added for read-only datastores and the action to perform if an update was attempted.
- Support was added for collections of interfaces where there is more than 1 implementation and discriminators are used.
- This is likely to be the final release in the 1.1 series.
Whats New in 1.2.0 Beta 3 Development Release:
- Full support was added for "ordered" Lists (JPA1).
- Support for many JPQL functions was added.
- Support for sequences was added in HSQLDB.
- More complete support was added for named sequences (JDO2).
- Full support for JPA1 lifecycle events was added.
- Support for JDO 2.1 XSDs was added.
- Support for optimistic transactions was rewritten, giving full support for all common scenarios.
- Support for mapping Strings to BLOB in Oracle was added.
- Support for cascade-persist=false (JPA1) was improved.
- Persistence-by-reachability was upgraded to handle the majority of cases at runtime rather than in metadata.
- Several bugs were fixed.