DataNucleus Access Platform 2.1 M3

2010年05月20日

DataNucleus Access Platform 是一个兼容各种标准的 Java 数据持久化框架,完全兼容 JDO1, JDO2, JDO2.1, JDO2.2, JDO2.3, 和 JPA1 等 Java 标准。提供一个基于 REST 的API。通过它可以访问所有常见的数据库服务器,还包括 LDAP, NeoDatis, JSON, Excel/ODF spreadsheets, XML, BigTable, 和 HADOOP 数据库等.

该版本升级到 JDO3,修正了一些一般查询的问题;A fix to in-memory query evaluation was added for result clauses and String.matches(). Many changes to RDBMS JDOQL2 were made for use with Derby, as well as for subqueries and parameters. Support for persisting primitive wrappers and embedded persistable objects was added for Excel. Spatial type support had many changes for use with JDOQL2

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