DataNucleus AccessPlatform is a standards-compliant Java persistence product. It is fully compliant with the JDO1, JDO2, JDO2.1, JDO2.2, JDO3, JPA1, JPA2 and JPA2.1 Java standards, and provides a REST API. It complies with the OGC Simple Feature Spec for persistence of geospatial Java types. It allows access to all popular RDBMS available today, together with the MongoDB, LDAP, NeoDatis, JSON, Excel/ODF spreadsheets, XML, BigTable, HBase, and Neo4j databases.
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Use of the persistence property "datanucleus.storeManagerType" was fixed. JPA EM.find was updated to support datastore-identity, and to provide convenience numeric conversions for key values. JPA2 1-N UNI FK relation detection was improved. Loading of metadata for inner classes via persistence-unit was fixed. Various store plugins have had the version of datanucleus-core restricted with this release in preparation for v3.1. A couple of bugs were fixed for MongoDB usage.