DataNucleus 4.0.6 发布，此版本更新内容如下： Support for implicit RDBMS CASE 'when' clauses. Fix to "max" value generator Fixes for Excel/ODF 详细改进： 任务： [NUCCORE-1273] - Support for NUCRDBMS-848 for DN 4.0 [NUCCORE-1274] - Support CASE / IF/ELSE "when" conditions that are not completely defined (i.e depend on previous when conditions) [NUCRDBMS-854] - Support NUCCORE-1274 BUG 修复： [NUCRDBMS-848] - "max" value generator provides wrong id if 2 objects are persisted in one transaction [NUCRDBMS-856] -ViewImpl seems to have regression in validate() method [NUCEXCEL-81] -Numeric object wrapper fields can fail on retrieval due to falling back to TypeConverter [NUCEXCEL-82] -StoreEmbeddedFieldManager has incorrect logic in detection of embedded sub field [NUCEXCEL-84] -Persist of object with composite PK results in blank row in worksheet before the next inserted object [NUCODF-61] - StoreEmbeddedFieldManager has incorrect logic in detection of embedded sub field 更多内容请看：http://goo.gl/IAlChu DataNucleus Access Platform 是一个兼容各种标准的 Java 数据持久化框架，兼容 JDO1, JDO2, JDO2.1, JDO2.2, JDO2.3, JPA1, JPA2 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. DataNucleus 4.0.6 发布，持久层框架下载地址
