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DataNucleus 4.1.0 发布，持久层框架

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DataNucleus 4.1.0 发布，此版本修复了一些Bug，并新增了一些功能。

Bug 修复

[ NUCCORE-1311 ] - JPQL "[NOT] IN" not compiled correctly when we have parameter yet value type not yet known
[ NUCJPA-308 ] - CriteriaBuilder.in always tries to create "(val == collVal1 || val == collVal2 || ...) but should use IN if single value specified to allow for Collection parameter
[ NUCRDBMS-893 ] - FROM joins should process first part of the join expression and take the table for that as one side of the join

新增功能

[ NUCCORE-1308 ] - Support Java generic TypeVariable in 1-1/N-1 relations
[ NUCCORE-1309 ] - Support Java generic TypeVariable in 1-N/M-N relations
[ NUCCORE-1312 ] - Support JPQL with RIGHT OUTER JOIN
[ NUCRDBMS-892 ] - Support JPQL with RIGHT OUTER JOIN

性能提升

[ NUCCORE-1313 ] - Support JPQL FROM "ON" clauses that are other than DyadicExpression
[ NUCCORE-1314 ] - If annotation specified on field and method then take as field and use method annotations as if on field
[ NUCJPA-307 ] - Criteria API usage currently requires something to be selected (using select/multiSelect) whereas could default to candidate
[ NUCRDBMS-894 ] - Query of Collection.contains where the element is of an invalid type should create query with 1=0 rather than throw exception
[ NUCRDBMS-895 ] - Support JPQL "COALESCE"/"NULLIF" with non-numeric arguments

任务

[ NUCAPIJDO-91 ] -Support typesafe query StringExpression.add(...)
[ NUCJPA-306 ] - Change "datanucleus.rdbms.allowColumnReuse" default to "true" for JPA usage
[ NUCRDBMS-890 ] - JPQL : Support use of MEMBER OF on Map (and interpret as "Map.containsValue")
[ NUCRDBMS-891 ] - Support query joins that join to EmbeddedId to provide access to the fields
[ NUCRDBMS-896 ] - JDOQL : support CharacterLiteral.toUpperCase/toLowerCase methods

此版本现已提供下载： download page

更多内容请查看发行页面。

DataNucleus 4.1.0 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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