DataNucleus Access Platform is a standards-compliant Java persistence product. It is fully compliant with the JDO1, JDO2, JDO2.1, and JPA1 Java standards. It also complies with the OGC Simple Feature Specification for persistence of geospatial Java types. It allows access to all popular RDBMSs available today, together with db4o, LDAP, NeoDatis, JSON, Excel documents, and XML databases. License: The Apache License 2.0 Changes:
The JDK requirement for 1.1 has been changed to JDK 1.5 or later. Support for JPQL bulk delete has been added for db4o, NeoDatis, Excel, XML, LDAP, and JSON datastores. RDBMS table existence checks have been improved. RDBMS datastore log startup has been cleaned up. Support for db4o has been raised to version 7.0 or later. Support for NucleusSQL querying for RDBMS has been removed. Support for (cast) and JPQL "" generic query compilation has been added. Several bugs have been fixed.