测试openjpa，无缓存。
Apache OpenJPA for the persistence engine.
ApacheOpenJPA，用作持久化引擎。
To avoid any confusion: OpenJPA is an Apache project.
为了避免混淆，先说明如下：openjpa是一个Apache项目。
For more details on other ways to download OpenJPA, see Resources.
有关下载OpenJPA的其他方法的更多详细信息，请参见参考资料。
The OpenJPA documentation Outlines the breadth of database support.
OpenJPA文档概括了数据库支持的广度。
Watch the OpenJPA home page or News page for updates on availability.
查看OpenJPA主页或新闻页寻找提供的更新。
The ANT script is a simple script that makes use of the OpenJPA enhancer tool.
ant脚本是一个非常简单的脚本，它利用了OpenJPA增强程序工具。
If you choose, you can skip ahead and use the Derby database bundled with OpenJPA.
选择后，就可以向前跳转来使用与OpenJPA捆绑的Derby数据库。
In this section, you will see how to set up your AST for seamless OpenJPA development.
在本部分中，您将了解如何设置AST以实现无缝的OpenJPA开发。
Slice extends OpenJPA for a distributed, horizontally partitioned database environment.
Slice将OpenJPA扩展用于一个分布式的、水平分区的数据库环境。
Log property: Commented out, but can be used to help debug potential OpenJPA usage issues.
Logproperty：已注释，但是可用于帮助调试潜在OpenJPA使用问题。
You can access the OpenJPA 2.0.1 build by downloading the openjpa-0.9.6-incubating.zip file.
您可以通过下载openjpa-0.9.6-incubating.zip文件 来访问 OpenJPA2.0.1构建。
Slice has extended OpenJPA implementation to support data partitions or sharding in a seamless manner.
Slice扩展了OpenJPA实现，使其能够无缝地支持数据分区。
As you can see from the OpenJPA 2.0 roadmap, the development effort has been active since December 2008.
在OpenJPA 2.0路线图中您可以看到，自2008年12月以来开发工作很活跃。
OpenJPA is focused on building a robust, high performance, scalable implementation of the JPA specification.
OpenJPA集中于构建一个稳健、高性能、可伸缩的JPA实现。
OpenJPA supports dynamic configuration of persistent closures through its FetchPlan interface (see Resources).
OpenJPA通过它的FetchPlan接口(见参考资料)支持持久化闭包的动态配置。
By the way, Apache OpenJPA does provide a Level2 cache plug-in with third party cache implementations available.
顺便说一下，针对第三方缓存实现，ApacheOpenJPA确实提供了二级缓存插件。
However, to enable this article to be used with any OpenJPA release, the dependencies will be handled separately.
然而，为了使本文可适用于任何OpenJPA版本，依赖项将分开处理。
Hopefully, this article has piqued your interest in JPA 2.0 and the associated Apache OpenJPA 2.0 implementation.
希望本文能够引起您对JPA 2.0及相关ApacheOpenJPA 2.0实现的兴趣。
The core design/architectural challenges addressed by Slice to extend OpenJPA runtime to adapt to partitioned databases
为了扩展OpenJPA运行时来适应分区的数据库，Slice应解决的核心设计/架构挑战
Similar JAR files with slightly different release names need to be selected if you are using an alternate release of OpenJPA.
类似JAR文件，稍有不同的是如果您使用另一个OpenJPA版本，需要选中版本名称。
The concepts, samples, explanations, and the screen captures will apply regardless of the specific OpenJPA release that you use.
概念、样例、解释和屏幕截图通用，与所使用的具体OpenJPA版本无关。
JPA - OpenJPA and Hibernate plugins that reflects changes to entities, annotations and configuration (beta, disabled by default).
JPA——提供OpenJPA和Hibernateplugins，能够反应实体、注解和配置变化(beta版，默认禁用)。
On the other hand, the configuration properties that are common across slices can simply be specified as original OpenJPA property.
另一方面，一些跨片常见的配置属性可以被简单地指定为原始的openjpa属性。
As before, point to the root of the jpa installation directory and select the following jar to import: openjpa-2.0.1.jar, then Finish.
与前面一样，指向jpa安装目录的根目录，并选择以下要导入的jar：openjpa - 2.0.1 . jar，然后单击Finish。
Performance is always a concern, especially when so many new features are being introduced into a stable runtime base like OpenJPA 1.2.x.
性能总是很受关注，尤其是要在稳定的运行时库（比如 OpenJPA 1.2.x）中引入如此多的新功能时。
Since the usage of OpenJPA in this article is for an application-managed persistence environment, you can use any of these OpenJPA releases.
由于本文所介绍的OpenJPA使用针对一个应用程序管理的持久化环境，您可以使用下列任何OpenJPA版本。
We continually run our complete OpenJPA 2.0 test bucket against these major databases to ensure proper coverage with all of the new features.
我们不断对主要数据库运行全面的OpenJPA 2.0测试bucket以确保所有新功能的覆盖面。
Download, build, and deployment instructions are available from the OpenJPA documentation site (see Resources), so I won't repeat those steps.
OpenJAP网站文档(见参考资料)包含了下载、构建和部署说明，所以这里我不准备重复这些步骤。
Download, build, and deployment instructions are available from the OpenJPA documentation site (see Resources), so I won't repeat those steps.
OpenJAP网站文档(见参考资料)包含了下载、构建和部署说明，所以这里我不准备重复这些步骤。
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