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DataNucleus Access Platform is an open source java persistence system, fully implementing and
fully-compliant with all JDO and JPA specifications. It supports persistence to
many types of datastores including RDBMS, ODBMS, XML, Excel/ODF, JSON, BigTable.
This project is DataNucleus "core" providing the persistence framework used by all DataNucleus
sub-projects (plugins). It includes transaction handling, logging, and management of datastores,
together with the basis for JDOQL/JPQL querying.
Support for this persistence layer is provided by way of a
Free Forum (no guarantee of availability) or via
Commercial Support from DataNucleus.