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.
|Tags||Database API ORM JDO JPA Persistence|
|Implementation||Java JPA JDO REST|
Release Notes: Support for multi-column type converters for MongoDB, Neo4j, and HBase was added. Column length control for UUID support was added for RDBMS. A bug was fixed in the L2 cache update procedure for a transaction rollback. HBase internal API usage was upgraded to support current versions of HBase. The generic table/column model used by other datastores was adopted for RDBMS support also. The Eclipse plugin was fixed. Assorted fixes and minor improvements were also made.
Release Notes: Performance for some cases was improved by 60%. Support for USING was added to Cassandra schema generation. Support for some PostgreSQL types was improved. Support for more java.time classes was added. Many bugs and minor features were fixed.
Release Notes: The bytecode enhancement contract was changed, meaning JPA users no longer need the JDO API jar to be present. Support for multi-column type converters was added for Excel, ODF, and JSON datastores. Schema evolution and query in-datastore support was added for Cassandra. Support for JPA exclude-unlisted-classes was fixed. EclipsePluginRegistry was dropped in favour of OSGiPluginRegistry. Many other bugs were fixed and improvements were made.
Release Notes: Support for Java 1.8 was added, and support for persisting the vast majority of java.time types was added. Support for multicolumn TypeConverters, and column length-defining TypeConverters was added to core. Support for Cassandra optimistic checks, interfaces, nonPC container fields, compound identity, and multicolumn TypeConverters were added. Support for HikariCP/DBCP2 pools were added for RDBMS. Support for embedded 1-1 was added for JSON. A bug was fixed for Timestamp nanosecs. Many other bugfixes and minor improvements were made.
Release Notes: A bug in RDBMS bulk-fetch with ordering was fixed. Lookup of object by identity was improved to minimize database lookups. A bug in XML indenting was fixed. A bug in handling of TypeConverters was fixed. A bug was fixed in disabling of the L2 cache for a PM/EM.