The fourth release of DataNucleus AccessPlatform is codenamed "Thomson" (Version 2.1). Thomson is scheduled to include the following features

• JPA2 compliance

Thomson ? : JJ Thomson was a physicist who is credited with the discovery of the electron and hence that an atom has internal structure

The third release of DataNucleus AccessPlatform is codenamed "Bohr" (Version 2.0). Bohr includes the following features

• Support for HBase (HADOOP) datastores
• Support for Amazon S3 datastores
• Support for Oracle Timesten datastores
• Support for generation of PK classes during enhancement
• Support for the majority of JPA2 persistence
• Rewrite of the RDBMS SQL generation process.
• Query result caching
• Support for other java types (e.g JodaTime)
• Further improvements to persistence to LDAP, XML, NeoDatis etc

Version 2.0.0 (release) was released on 9th January 2010. It is now in development/maintenance mode.

Bohr ? : Niels Bohr was a Danish physicist who made fundamental contributions to the understanding of atomic structure

The second release of DataNucleus AccessPlatform is codenamed "Rutherford" (Version 1.1). Rutherford includes the following features

• Move to JDK1.5+
• Enhanced support for Datastore Replication
• Complete support for JDOQL/JPQL syntaxis across all supported datastores
• Improvements to persistence to LDAP, XML, NeoDatis etc
• Add support to OpenDocument format spreadsheets

Version 1.1.0 (release) was released on 23rd February 2009. It is now no longer developed.

Rutherford ? : Ernest Rutherford was a scientist who, in 1912, proposed the modern meaning of the term "nucleus"

The baseline release of DataNucleus AccessPlatform is codenamed "Faraday" (Version 1.0). Faraday includes the following features

• Standards-compliant Java persistence using JDO or JPA APIs
• Persistence of data to RDBMS, db4o, LDAP, Excel, XML, NeoDatis, and JSON datastores.
• Querying of data using JDOQL, JPQL, and SQL
• Rewritten Level 2 cache

Version 1.0.0 (release) was released on 1st September 2008. It is now no longer developed.

Faraday ? : Michael Faraday was a scientist who, in 1844, was the first to refer to a nucleus as the central point of the atom.

This will be the first release of DataNucleus AnalysisPlatform aimed at data quality, profiling, and management for Java.