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DataNucleus

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DataNucleus
Developer(s)DataNucleus Team
Initial releaseApril 25, 2008; 16 years ago (2008-04-25)
Stable release
6.0.7 / February 3, 2024; 9 months ago (2024-02-03)
Written inJava
PlatformJava SE, Java EE
TypeObject-relational mapping
LicenseApache License 2
Websitewww.datanucleus.org Edit this at Wikidata

DataNucleus (formerly known as Java Persistent Objects JPOX) is an open source project (under the Apache 2 license) which provides software products around data management in Java. The DataNucleus project started in 2008[1] (the JPOX project started in 2003 and was relaunched as DataNucleus in 2008 with broader scope).

DataNucleus Access Platform is a fully compliant implementation of the Java Data Objects (JDO) 1.0, 2.0, 2.1, 2.2, 3.0, 3.1, 3.2 specifications (JSR 0012,[2] JSR 0243[3]) and the Java Persistence API (JPA) 1.0, 2.0, 2.1, 2.2 specifications (JSR 0220,[4] JSR 0317,[5] JSR 0338[6]), providing transparent persistence of Java objects. It supports persistence to the widest range of datastores of any Java persistence software, supporting all of the main object-relational mapping (ORM) patterns, allows querying using either JDOQL, JPQL or SQL, and comes with its own byte-code enhancer. It allows persistence to relational datastores (RDBMS), object-based datastores (db4o, NeoDatis ODB), document-based storage (XML, Excel, OpenDocument spreadsheets), web-based storage (JSON, Google Storage, Amazon Simple Storage Service), map-based datastores (HBase, Google's Bigtable, Apache Cassandra), graph-based datastores (Neo4j), document stores (MongoDB) as well as other types of datastores (e.g. LDAP). Its plugins are OSGi-compliant so can be used equally in an OSGi environment.

DataNucleus Access Platform is also utilised by the persistence layer behind Google App Engine for Java,[7] and VMForce (cloud offering from Salesforce.com and VMWare).[8]

See also

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  • Apache Isis, Domain driven applications, quickly. Using DataNucleus JDO for persistence
  • Apache Hive, Data warehouse infrastructure using DataNucleus for persistence
  • JFire, ERP using DataNucleus for persistence

References

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  1. ^ "DataNucleus launched". InfoQ. May 1, 2008. Retrieved May 1, 2008.
  2. ^ Java JCP JSR-0012 JDO 1.0 Specification
  3. ^ Java JCP JSR-0243 JDO 2.0/3.0/3.1/3.2 Specifications
  4. ^ Java JCP JSR-0220 JPA 1.0 Specification
  5. ^ Java JCP JSR-0317 JPA 2.0 Specification
  6. ^ Java JCP JSR-0338 JPA 2.1/2.2 Specifications
  7. ^ "Google AppEngine for Java released". DataNucleus. Apr 7, 2009. Archived from the original on November 6, 2011. Retrieved Apr 7, 2009.
  8. ^ "VMForce using DataNucleus". DataNucleus. Oct 22, 2010. Archived from the original on November 6, 2011. Retrieved Oct 22, 2010.
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