业务组件层。
层2：企业组件层。
这一层所提及的许多出错处理的方案也可以应用于组件层。
A lot of error handling considerations mentioned for this layer is also possible to be implemented in the component layer.
SOA中的集成在服务组件层实现，主要概念或工具是ESB，如图7所示。
Integration in SOA is achieved at the service components layer, with the primary concept or tool being an ESB, as shown in Figure 7.
分层规划是指分别在部件层、组件层和零件层上进行装配顺序推理。
The layer upon layer indicates that the assembly sequence planning is carried out on components layer, subassembly layer and part layer respectively.
这也修改了企业组件层的实现；在这种实现中它不再包含“包装器”组件。
It also modifies implementation of the business components layer; in this implementation it does not contain "wrapper" components any more.
正如服务创建场景的访问模式中所述，间接公开和直接公开的区别在于其中包含了服务组件层。
As explained in Access patterns for service Creation scenario, the main difference between indirect and direct exposure is the inclusion of a service component layer.
WebSphereProcessServer添加上面的两个组件层：服务组件和其余的支持服务。
WebSphere Process Server adds the top two component tiers: service components and the remaining supporting services.
如下所示，此流程通过服务组件层的企业服务总线(EnterpriseService Bus,esb)路由。
As I show below, most of the time, this process is routed through the Enterprise service Bus (ESB) at the service components layer.
在实现集成组件后，BPM层将提供事件数据和统计数据（这些数据还可以被输入到建模环境中）的捕获和交付。
Following implementation of integration components, the BPM layer provides capture and delivery of event data and statistics, which can also be input back into the modeling environment.
从位置数据提供者检索数据，这是一个数据抽象层(DAL)组件，在内存中缓存所有位置。
Data is retrieved from the location Data Provider — a Data Abstract Layer (DAL) component — which caches all locations in memory.
您还可以使用会话ejb组件来代替命令层。
You can also replace the command layer with session EJB components.
与其他事务策略一样，无论您选择开始事务的组件或层是什么，启动事务的方法都被认为是事务拥有者。
As with the other transaction strategies, regardless of the component or layer you choose to start the transaction, the method that starts the transaction is considered the transaction owner.
目的添加了一个间接层来支持复杂组件的重用和替换。
Intents add a layer of indirection that enables sophisticated component reuse and substitution.
另一方面，功能层的几乎所有组件也利用了这些资源。
On the other hand, the resources are also leveraged by almost all components in the Function layer.
JNDI在J2EE应用程序中的主要角色就是提供间接层，这样组件就可以发现所需要的资源，而不用了解这些间接性。
The primary role of JNDI in a J2EE application is to provide the indirection layer so that components can find required resources without being much aware of the indirection.
基础结构层中的组件为之上的所有层提供非常基本的功能。
The components in the Infrastructure layer provide the very basic functionality for all the above layers.
请求度量可以从多种产品中获得，这使跟踪一个通过复杂系统的端到端请求成为可能，即使这一过程涉及到多个不同的服务器组件和层。
Request metrics are available from many products, making it possible to follow a request end-to-end through a complex system, even as it involves many different server components and layers.
数据将以模型对象的形式在层与组件之间来回传递。
Data is passed back and forth between tiers and components in the form of model objects.
通过服务器端所有三层中的组件实现一个典型的电子商务应用用例。
A typical e-business application use case would be realized by components in all the three layers on the server side.
您将了解架构是什么，并了解该架构内的软件组件和功能层。
You'll learn what the architecture is and components of the software and functional layers within the architecture.
服务组件遵循服务层中定义的契约，并保证IT实现与服务描述的一致。
Service components conform to the contracts defined in the services layer and guarantee the alignment of it implementation with service description.
下面详细讨论每个层和组件。
Each of these layers and components are discussed in detail below.
JSP文件充当表示层组件，他们包含在下载文件中。
The JSP files make up the presentation layer components; they are included in the download file.
因此，支持这些回调也需要入口点层组件中的代码。
It evolves that support for these call-backs requires code in the entry point layer components as well.
在可能的情况下，新组件可以重用数据库层的功能。
New components could reuse database tier functionalities where possible.
Linux的这个块层组件称为丢弃请求，它来自于更高级别的文件系统的文件删除。
The Linux block layer component of this is called a discard request, which results from a higher-level file system file deletion.
ajax—用ajax组件来收集信息、与服务层通信、呈现响应数据。
Ajax - Ajax components are used to gather information, communicate to service layer, and present the response data.
层通用业务组件和服务模型。
有些解决方案提供这一组件，但是它与表现层紧密地耦合在一起。
Some solutions offer this component but it is tightly coupled with the presentation layer.
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