访问服务层可以将后端编程模型和API向外扩展到客户端。
The access services layer extends backend programming model and APIs out to the client.
数据仲裁程序提供了不同数据源和客户应用程序所用的统一数据访问API之间的粘合层。
Data mediators provide the glue layer between disparate data sources and a unified data access API used by the client application.
提供了一个完整的CORBA客户机访问Geronimo服务器管理的业务层ejb的例子。
It provides a complete example of a CORBA client accessing business-tier EJBs managed by the Geronimo server.
它提供了一层抽象，解耦了客户端代码与要访问的服务及其位置与底层实现。
It provides a layer of abstraction to decouple client code from access to a service, as well as its location and underlying implementation.
在两层的客户端应用模型中，人们甚至会直接从事件处理器中访问数据库。
In 2-tier Client application models people were even accessing the database directly from the event-handlers.
这个简单的基于Swing的GUI客户机应用程序将访问业务层中的CMP2实体e JB，并显示宠物店所有产品种类。
This simple Swing-based GUI client application will access the CMP2 entity EJB in the business tier and display all the pet store product categories.
管理层突然决定要将该产品升级到三层结构以便客户能通过Web访问和使用此产品，而且它具有瘦客户机。
Management decides to make the product three-tiered so that customers can access it over the Web and it can have thin clients.
Web应用程序中关于用户访问的状态信息通过某种方式存储在服务器中，而不是客户机层。
State information about a user's visit within the Web application is stored somehow at the server, rather than the client level.
数据访问层还可以作为连接其他系统的集成点，可以成为其他Web服务的客户端。
The data access layer can also act as an integration point to link with other systems, including being a client of other Web services.
这些客户机应用程序通常称为胖客户机解决方案，仍访问由geronimo托管的业务层ejb和eis层服务，与其瘦客户机对应物一样。
These client applications, often called fat-client solutions, still access business-tier EJBs and EIS-tier services hosted by Geronimo, like their thin-client counterparts.
服务实现层(Service implementation layer)——负责将现有的(可通过后端适配器访问的)服务编排成客户所需的服务。
Service implementation layer - responsible for orchestration of existing services (accessible through back-end adaptors) into services required by customers.
至此，已经完成客户端对自定义授权与重置密码的数据访问层逻辑。现在看看客户端。
So far, we have finished examining the server-side data access layer logic for custom authentication and reset password. We will switch to the client side next.
DECP由数据访问层、业务逻辑层、安全代理、数据传送代理、客户代理、消息层、事务管理器七个部分组成。
DECP is made up of data access layer, business logic layer, security proxy, data transport proxy, client proxy, messages layer and transactions manager.
数据层不能从表示层中的客户端直接访问。
The data tier cannot be accessed directly from the client in the presentation tier.
数据层不能从表示层中的客户端直接访问。
The data tier cannot be accessed directly from the client in the presentation tier.
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