Java 持久层框架 DataNucleus Access Platform 发布了 3.1 的首个里程碑

     <a href="/misc/goto?guid=4958187675208992889" target="_blank">DataNucleus Access Platform</a> 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。    <br />    <br /> DataNucleus Access Platform 发布了 3.1 的首个里程碑，    <p>该版本改进记录包括：</p>    <p>1. javax.time is now supported out of the box. <br /> 2. Support for bulk loading from datastore via PM.getObjectsById was added. <br /> 3. Support for JPA2.1 AttributeConverter API was added. <br /> 4. Support for multitenancy via discriminator for HBase was added. <br /> 5. Support for JDO/JPA schema naming conventions was added for ODF, Excel, MongoDB, HBase, and JSON datastores. <br /> 6. A new internal generic type converter API was added, and is supported for RDBMS, ODF, Excel, MongoDB, HBase, and JSON datastores.</p>