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DataNucleus Access Platform 1.0 M4 Released

Auguest 4th 2008 - DataNucleus Access Platform 1.0 ("Faraday") Milestone 4 is released. DataNucleus Access Platform provides persistence and retrieval of Java objects to/from a wide range of datastores including RDBMS, db4o, LDAP, XML, Excel, NeoDatis ODB, and JSON. Version 1.0 Milestone 4 includes the following changes

  • Upgrade to JDO 2.2 (snapshot), NeoDatis 1.9-beta-3, Apache POI 3.1
  • Added cache for compiled queries for XML, db4o, Excel, NeoDatis, JSON and LDAP
  • Added support for NeoDatis embedded server
  • Added full support for JPQL query compilation using generic compiler
  • Added support for in-memory JPQL query evaluation of all spec required functions.
  • Added support for in-memory JDOQL query evaluation of all spec required methods, with the exception of Collection.contains, Map.containsKey, Map.containsValue, Map.get
  • Support for JDO2.2 @Cacheable allowing control over classes/fields to be cached
  • Added pluggable support for generic query methods/functions
  • Added support for use of implicit/explicit parameters with generic JDOQL/JPQL
  • Added support for use of DISTINCT with generic JDOQL/JPQL
  • Expanded the support for in-memory evaluation of aggregates to cater for all types of fields
  • Bug fix to runtime bytecode enhancement allowing its use with annotated classes, and added optimisation to specify the packages to be runtime enhanced providing big speedups
  • Fixes to allow complete use of Access Platform in a java security environment
  • Support for JPA2 @ElementCollection/@CollectionTable
  • Support for performing db4o/NeoDatis JDOQL/JPQL queries totally in-memory where required
  • Bug fix to allow use of RDBMS datastores that store in lowercase without the need to provide a persistence property to specify this
  • Bug fix to RDBMS persistence of complicated hierarchy with container+inheritance and multiple relations between container and element, avoiding FK violation
  • Bug fix to L2 caching for multithreaded operations

This release is downloadable under an Apache 2 license from the DataNucleus community site.