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DataNucleus 4.0.6 发布，持久层框架

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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 4.0.6 发布，持久层框架

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.

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