Based on the analysis of the existing backoff algorithms in access layer, this paper proposes an adaptive slow backoff algorithm.
针对信道接入层已有退避算法，提出了一种自适应慢速退避算法。
I choose to wrap the DAO in an interface, so I can switch my data access layer to use different persistence strategies.
我选择将这个dao封装在一个接口中，这样我就能够切换数据访问层来使用不同的持久性策略。
If access to the source database is unreliable, striving for resiliency in the cache layer might improve overall stability for read-intensive applications.
如果对源数据库的访问不可靠，在缓存层争取弹性可能会提高读密集型应用程序的总体稳定性。
For quick prototyping efforts it is acceptable to combine the database access in the view layer, compromising the strict separation of data from view.
为了快速开发原型，将数据库访问合并到视图层，打破数据与视图严格分离的限制，这是可以接受的。
The data access layer is responsible retrieving and manipulating data stored in enterprise information systems (EISs).
数据访问层负责对存储在企业信息系统(EIS)中的数据进行存取等操作。
In addition, it provides a simple mapping and API layer that lets developers quickly develop data access code.
此外，它还提供了一个简单的映射和api层，使开发人员能够快速地开发数据访问代码。
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.
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。
The lowest layer in the architecture is the mediator layer which performs the data access with the repository.
体系结构中的最低层是中介器层，它执行对库中数据的访问。
In an actual system, the architect would design the classes for each software layer (presentation, business, and data access).
在实际的系统中，架构师会为每个软件层(表示层、业务层和数据访问层)设计类。
The code in a layer can only access the layer beneath it, and only through an interface (see Figure 3).
某个层的代码能且只能通过接口访问该层(如图3所示)。
The implementation (Figure 3) adds additional layer - enterprise data bus, providing access to the enterprise data, contained in either enterprise applications or their subordinated databases.
这种实现(图3)增加了额外的一层——企业数据总线，它提供对包含于企业应用或是应用下属数据库中的企业数据的存取。
In a persistence architecture based on session beans and JDBC, a session bean delegates all access commands to the JDBC layer.
在基于会话bean和JDBC的持久性体系结构中，会话bean将所有访问命令都委托给jdbc层。
To access the business services (lets say in the Spring layer), the AjaxBean can make use of service Locator pattern to interact with the business services.
为了访问业务服务(比如说在Spring层)，AjaxBean可以使用ServiceLocator模式与业务服务交互。
The authorize methods are designed to protect the methods in a service layer from unauthorized access.
authorize方法设计用于保护服务层中的方法免受未经授权的访问。
You can now generate a pureQuery data access layer for all SQL statements in the *.sql file in one shot using the wizard.
借助向导，您可以轻松地为 *.sql文件中的所有SQL语句生成一个 pureQuery数据访问层。
In order to overcome the same-origin policy, the portlet USES the Ajax proxy layer to access these domains.
为了克服相同来源政策，portlet会使用Ajax代理层来访问这些域。
Configuration Major layers of the application — in the RentaBike application, I expose a Data Access Object (DAO) layer, a controller layer, and a view layer (see Listing 1).
配置应用程序的主要层——在RentaBike应用程序中，我公开了一个数据访问对象(dao)层、一个控制器层和一个视图层(参阅清单1)。
The pureQuery data access layer with the specified interface name and suggestions for APIs for each SQL statements will be generated in one shot.
可以轻松地生成带有指定的界面名称和每个SQL语句的建议API 的pureQuery数据访问层。
PureQuery API will still be used to provide the data access layer, but it will return the data rows "as is" to the application, in the form of an Employee object with two variables: id and doc.
仍然使用pureQueryAPI提供数据访问层，但是它把数据行“按原样”返回给应用程序，也就是包含两个变量(id和doc)的Employee对象。
Also, performing all CMP operations in a session bean shields the Web application from having to know any of the implementation details of the database access layer.
此外，在Sessionbean中执行所有CMP操作使得Web应用程序无需知道数据库访问层的任何实现细节。
As shown in the Figure 4, this mediator works with WebSphere Information Integrator to form a virtual data access services layer for SDO applications.
如图4中所示，该中介使用DB 2 Information Integrator为SDO应用程序构建了一个虚拟数据访问服务层。
The application's main form, "Form1," is in the Presentation layer. Since Form1 is part of the Presentation layer it must access the business layer through its interface (see Figure 4).
应用的主窗体，“Form1”位于表现层，它必须通过其接口访问业务层(如图4)。
The power of this layer is in separating data access code from the business logic for disparate data store technologies.
该层的作用在于针对不同的数据存储技术，从业务逻辑中分离数据访问代码。
First we'll enhance the information access and distribution architecture by adding the connectivity and interoperability layer shown in Figure 4.
首先，我们将通过添加如图4所示的连接和互操作层，从而增强信息访问和分布体系结构。
Business systems and partner systems would request MDM Services to access master data through capabilities provided in the connectivity and interoperability layer.
业务系统和伙伴系统通过连接和互操作层中提供的功能请求MDM服务，从而访问主数据。
In multi-layer authentication, the authentication levels denote whether additional authentication is necessary to access a protected object.
在多层身份验证中，身份验证层表示是否需要额外的身份验证才能访问受保护的对象。
As the bottom layer of the ODFDOM hierarchical structure, it provides direct access to the physical storage in the ODF package, such as XML streams, pictures, and embedded objects.
它是ODFDOM层次化结构中最低的一层，它提供对odfdom包中的物理存储的直接访问，比如xml流、图像和嵌入的对象。
Likewise, changes to access controls require changes to built-in access mechanism in the core layer.
类似地，对访问控制的更改要求更改核心层中的内置访问机制。
These underlying data access calls are thus consolidated in the data access layer and hidden from the business logic.
这些底层数据调用整合到数据访问层中，对于业务逻辑是不可见的。
You can easily access these elements through the DOM layer API that is introduced in the next section.
可以通过下一节介绍的dom层api轻松地访问这些元素。
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