当需要访问程序元数据中的特性时。
When you have to access attributes in your program's metadata.
通过应用程序元数据查明问题在应用程序源代码中的位置。
Application metadata to pinpoint problems in the application source.
还可以根据请求参数或其他应用程序元数据定义缓存动态内容的缓存规则。
You can also define caching rules for caching dynamic content based on request parameters or other application metadata.
模型转换着重于根据在框架或插件中扩展类的应用程序元数据元素创建源代码。
A model transformation is focused on creating source code based on application metadata elements that extend classes in either the framework or a plug-in.
您可以选择记录异常、配置信息、连接状态、JDBC驱动程序元数据、或者查询参数。
You may choose to log exceptions, configuration information, connection status, JDBC driver metadata, or query parameters.
相反，尽管EBA中的应用程序元数据描述应用程序内容，但是无需在EBA中包含二进制内容。
In contrast, application metadata in the EBA describes the application content, but it is not necessary to include the binary content in the EBA.
对建模配置的更改和设置被adaptiveApplicationFramework存储在数据存储库的应用程序元数据中。
Changes to the model configuration and Settings are stored in the data repository's application metadata by the Adaptive application Framework.
定义这种基于XML的MBean描述符改进了对应用程序元数据的控制，而不会失去基于POJO的设计和Spring复合的灵活性。
Defining such XML-based MBean descriptors improves my control over application metadata without giving up the flexibility of POJO-based designs and Spring composition.
如果不使用元数据编程，那么每个程序元素只能使用一个名字。
In programming without metadata, you can use only one name in each program element.
ASBO表示源应用程序数据格式并且包含其元数据。
The ASBO represents the source applications data format and contains its metadata.
它允许使用64位数据源驱动程序，且可以利用64位满足查询处理、元数据缓存和数据缓存的空间。
It permits the use of 64 bit data source drivers and can leverage the 64 bit address space for query processing, metadata caching and data caching.
这些应用程序属性通常称为元数据，并且可以根据客户状态确定用户如何获得不同级别的服务（举例而言）。
These application attributes are often called metadata, and can determine how users can get a different level of service according to customer status, for example.
用户通过单击用应用程序表示的值来选择元数据条件。
The user selects metadata conditions by clicking on values presented by the application.
在AOP编程中使用元数据将类与方面之间的耦合限制为附加在程序元素上的元数据。
Using metadata in AOP programming limits the coupling between classes and aspects only to the metadata attached to the program elements.
第二个不足是：虽然注释对于与某个组件相关的元数据来说很理想，但是对于跨组件应用程序的元数据，它并不是非常合适。
The second drawback is that while annotations are ideal for metadata that relates to a particular component, they're not well suited to metadata with cross-component application.
元数据功能的选择会影响表示元数据的方式，但是将附加数据与程序元素相关联的基本想法对所有元数据功能而言是相同的。
The choice of metadata facility affects the experience of expressing metadata, but the fundamental idea of associating additional data to program elements is common to all metadata facilities.
除了使用基于XML的机制外，现在还可以使用注释来直接在应用程序中定义元数据。
Annotations can now be used to define metadata directly in the application code, in addition to having an XML-based mechanism.
元数据功能定义了向程序元素提供注释的机制。
A metadata facility defines a mechanism to supply annotations to program elements.
如果要开发的数据库应用程序必须与许多不同的数据库或JDBC驱动程序进行交互，那么数据库元数据是最有用的。
Database metadata is most useful if you're developing a database application that must interact with a number of different databases or JDBC drivers.
一个同时包含该应用程序的元数据和数据的单个数据存储库就是全部所需的。
A single data repository containing both metadata and data for the application is all that is required.
元数据是表示关于程序元素的额外信息的方法。
Metadata is a way to express additional information about program elements.
标准元数据功能提供了表示关于程序元素的额外信息的方便方法。
The standard metadata facility provides an easy way to express additional information about program elements.
文件系统驱动程序更新适当的元数据，但是没有时间将其缓存中的数据刷新到磁盘的新块中。
The filesystem driver updated the appropriate metadata, but didn't have time to flush the data from its caches to the new blocks on disk.
还可能包括由工具生成的其他一些应用程序服务器依赖的元数据文件。
There may also be other application server dependent metadata files generated by the tools.
虚拟的元数据储存库允许应用程序通过单个api访问并聚集不同种类的元数据源。
A virtual metadata repository allows applications to access and aggregate heterogeneous metadata sources through a single API.
否则，文件系统驱动程序就不能理解和操作元数据，那么您也就不能存取文件了。
Otherwise, the filesystem driver won't be able to understand or manipulate the meta-data, and you won't be able to access your files.
首先，程序元素必须包含元数据注释。
元数据是用称为注释的程序元素表示的。
Metadata is expressed using program elements called annotations.
一个模块拥有元数据、一个安装程序、代码和几个模板。
一个模块拥有元数据、一个安装程序、代码和几个模板。
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