DataNucleus Access Platform 3.0 M4 / 2.2.3 版本發佈

今天DataNucleus Access Platform 3.0 M4 / 2.2.3 版本發佈了。

DataNucleus Access Platform 是一個兼容各種標準的 Java 數據持久化框架,完全兼容 JDO1, JDO2, JDO2.1, JDO2.2, JDO2.3, 和 JPA1 等 Java 標準。提供一個基於 REST 的API。通過它可以訪問所有常見的數據庫服務器,還包括 LDAP, NeoDatis, JSON, Excel/ODF spreadsheets, XML, BigTable, 和 HADOOP 數據庫等。

DataNucleus Access Platform 3.0 M4  版本主要改進:

  • Fix to embedded field handling for RDBMS where an embedded object has a relation to a non-embedded object.
  • Allow property methods (getter/setter) to be final and still handle persistence
  • Fix to single-string parse for JDOQL/JPQL when using multiple subqueries
  • Fix to JDOQL parse for typesafe query to allow for null literal
  • Fix to persistence of Date as String for those datastores that need it
  • Fix to corner case on retrieval by identity to check inheritance via discriminator
  • Provide mechanism for allowing persistence properties to be specifiable on the EM/PM
  • SchemaTool : support additional properties on delete/validate, and allow DDL for RDBMS on delete

更多詳細信息:http://www.datanucleus.com/news/access_platform_3_0_m4.html

DataNucleus Access Platform 2.2.3 版本主要改進:

  •     Fix to use of embedded fields where having a relation to a non-embedded.
  •     Allow property methods (getter/setter) to be final
  •     OSGi : add optional import of log4j
  •     Fix to log messages so we don't call cache.size() since some don't support it
  •     Mark SortedSet/SortedMap wrappers as Serializable
  •     Add check for null literal in JDOQL parser
  •     JPA : Fix to use of @CollectionTable
  •     JPA : Improvements to XML metadata handling
  •     RDBMS : fix to String.matches type handling
  •     Other minor cleanups
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