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JPA

网络持久化(Java Persistence API)；服务局；公共服务局(Jabatan Perkhidmatan Awam)

JPA

网络释义

JPA

持久化(Java Persistence API)

TopLink Essentials 是 Oracle 的 TopLink 产品的开源社区版，它是 JPA（Java Persistence API）的参考实现。它是用于创建 …

服务局

被公务服务局（JPA）承认的只有北京、上海、南京三家中医药大学，本地院校没有。被马来西亚资格机构（MQA）承认的中 …

公共服务局(Jabatan Perkhidmatan Awam)

公共服务局（JPA）奖学金争议，该局一直强调遴选得主是「依据标准办事」，但却又从来不透露遴选机制和评分标准细节，彷 …

例句：

Play makes it pretty easy to switch in and out of various datastores, and it supports JPA out of the box .

Play 使得切换各种数据存储非常轻松，它开箱即用地支持 JPA 。

You will see a number of errors show up in the Problems view that you can safely ignore until you create your JPA entities .

在 Problems 视图中您将会看到一系列的错误，在创建 JPA 实体之前您可以一直忽略它。

This means that when someone asks for an order , the JPA engine will fetch all the line items that are associated with the order as well.

这意味着，当有人请求订单时，JPA 引擎还将获取与该订单相关的所有行项目。

The class is annotated with an @Entity annotation to indicate to JPA that this class is a mapped entity .

类带上了注释 @Entity ，以向 JPA 指示该类是一个被映射的实体。

A key concept of the JPA is that of a persistence context .

JPA 的一个重要概念是持久上下文。

Frank: One of the initial goals of GraniteDS was to leverage all features of JPA engines , starting with lazy-loading and Hibernate .

Frank：GraniteDS 最初的一个目标就是利用 JPA 引擎的所有特性，从延迟加载和 Hibernate 开始。

JPA seems to be the solution that everyone has been looking for. What 's your take on it ?

JPA 似乎是每个人都在寻求的解决方案，对此你有什么看法？

Not surprisingly, as the persistence unit is no longer defined by Java EE, no such name will be populated by the OSGi JPA runtime .

由于持久性单元不再由 JavaEE 定义，因此这样的名称不会由 OSGiJPA 运行时填充。

Loaded with both in- and out-of-container persistence options, JPA brings J2EE architects a number of new design choices.

由于具有容器内和容器外持久性选项，JPA 为 J2EE 架构师带来一系列全新设计选择。

The JDO and JPA interfaces present some leaky abstractions due to the fact that BigTable is not a relational database .

由于 BigTable 不是一个关系数据库，JDO 和 JPA 的接口出现了一些抽象泄漏。

If you do not specify the Join column , JPA will attempt to resolve the keys based on a naming scheme .

如果您未指定 Join 列，JPA 将根据命名方案尝试解析这些键。

You use the @OneToMany annotation to let the JPA runtime know that this is a managed relation with one team having many players .

使用 @OneToMany 注释让 JPA 运行时知道这是一个管理关系，球队有多名球员。

JPA enables you to configure a single side cache (shown in Figure 5 ) to improve performance .

JPA 使您能配置一个 sidecache （如图 5 所示）来改进性能。

Now , let us have a look at the JPA (Java Persistence API ) annotations of your generated Application Java domain class .

现在，让我们看一下生成 ApplicationJava 领域类的 JPA （Java 持久化 API ）注释吧。

On the first page , you can select one of the available JPA Managers that you want to use in the current page .

在第一页中，您可以选择一个可用的，您想在当前页面中使用的 JPAManagers 。

From the JPA perspective , in the JPA Structure view (usually on the top-right of the JPA perspective ), select the birthdate attribute .

在 JPA 视角下，从 JPAStructure 视图中（通常在 JPA 视角的右上部），选择 birthdate 属性。

Let me quickly go through the various ways of accessing data with JPA, assuming you are familiar with how to map Java objects in JPA.

让我们快速浏览一下使用 JPA 访问数据的各种方法，假定您非常熟悉在 JPA 中映射 Java 对象的方式。

The Java Persistence API (JPA) defines how a server-side application should interact with persistent data stored in a relational database .

JavaPersistenceAPI （JPA ）定义了一个服务器端应用程序是如何查询存储在一个关系数据库中的数据的。

I am personally part of the JPA 2 expert group and have been thinking about Java Persistence integration for a while.

我个人是 JPA2 专家组的成员，已经对 JavaPersistence 集成思索了一段时间。

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