DataNucleus 4.1.0 发布，持久层框架
发布于 2015-05-20 03:30:29 | 187 次阅读 | 评论: 0 | 来源: 网友投递
DataNucleus Java数据持久化框架
Data Nucleus 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。尤其要特别说明的是Data Nucleus Access Platform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，
DataNucleus 4.1.0 发布，此版本修复了一些Bug 并新增了一些功能。
New Feature
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[NUCCORE-1308] - Support Java generic TypeVariable in 1-1/N-1 relations
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[NUCCORE-1309] - Support Java generic TypeVariable in 1-N/M-N relations
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[NUCCORE-1312] - Support JPQL with RIGHT OUTER JOIN
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[NUCRDBMS-892] - Support JPQL with RIGHT OUTER JOIN
Improvement
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[NUCCORE-1313] - Support JPQL FROM "ON" clauses that are other than DyadicExpression
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[NUCCORE-1314] - If annotation specified on field and method then take as field and use method annotations as if on field
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[NUCJPA-307] - Criteria API usage currently requires something to be selected (using select/multiSelect) whereas could default to candidate
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[NUCRDBMS-894] - Query of Collection.contains where the element is of an invalid type should create query with 1=0 rather than throw exception
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[NUCRDBMS-895] - Support JPQL "COALESCE"/"NULLIF" with non-numeric arguments
Task
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[NUCAPIJDO-91] -Support typesafe query StringExpression.add(...)
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[NUCJPA-306] - Change "datanucleus.rdbms.allowColumnReuse" default to "true" for JPA usage
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[NUCRDBMS-890] - JPQL : Support use of MEMBER OF on Map (and interpret as "Map.containsValue")
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[NUCRDBMS-891] - Support query joins that join to EmbeddedId to provide access to the fields
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[NUCRDBMS-896] - JDOQL : support CharacterLiteral.toUpperCase/toLowerCase methods
Bug
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[NUCCORE-1311] - JPQL "[NOT] IN" not compiled correctly when we have parameter yet value type not yet known
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[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
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[NUCRDBMS-893] - FROM joins should process first part of the join expression and take the table for that as one side of the join
此版本现已提供下载：download page
更多内容请查看发行页面。
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.
Data Nucleus 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。尤其要特别说明的是Data Nucleus Access Platform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，
历史版本 :
DataNucleus v4.2.2 发布，Java 持久层框架
DataNucleus v4.2.1 发布，Java 持久层框架
DataNucleus 4.2 M3/4.1.4 发布，持久层框架
DataNucleus 4.0.7 发布，持久层框架
DataNucleus 4.2 M1 发布，持久层框架
DataNucleus AccessPlatform 4.1.1 发布
DataNucleus 4.1.0 发布，持久层框架
DataNucleus 4.1 M4 发布，持久层框架
DataNucleus 4.1.0.M3 发布，持久层框架
DataNucleus 4.1 M2 发布，持久层框架
DataNucleus 4.0.6 发布，持久层框架
DataNucleus 4.0.5 发布，持久层框架