An alternative would be to use a service layer.
替代方法是使用服务层。
One option is to place your validation logic in a service layer.
一个选择就是把验证代码放到“Service”层中。
This is achieved by introducing a service layer into an enterprise architecture.
这是通过在企业体系结构中引入服务层来实现的。
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。
As a single entry point to all enterprise data stores, the implementation of a data service layer has many benefits.
作为所有企业数据存储的单一入口点，实现数据服务层的好处很多。
Most times it USES a service layer framework to manage transactions, coordination and sometimes business logic, and a web framework.
一般情况下，使用一个服务层框架去管理事务、协作，有时也包括业务逻辑和Web框架。
Adding a service layer for ACL retrieval opens up EAz to implementing ACLManager for the possibility of using caches for frequently used ACLs.
为acl检索添加服务层促使EAz实现ACLManager，以便能够为经常使用的ACL使用缓存。
The architecture includes several layers, including a service layer, whose main purpose is to make the architecture imitate a real world application.
该体系结构包括多个层，其中包括服务层，其主要用途是使该体系结构模仿实际的应用程序。
If a service layer method deals with only read-only data, you can mark its transaction as read-only, which is a hint to optimize Hibernate and the underlying JDBC driver.
如果一个服务层方法只处理只读数据，可以将它的事务标为只读，这是优化Hibernate和底层JDBC驱动的一个方法。
Rather, I'm suggesting that the benefits that layered architectures provide come at a cost, and you should assess the cost before adding an architectural element such as a service layer.
相反，我认为分层架构提供的优势是有代价的，您应该在添加架构元素(比如，一个服务层)之前评估成本。
It has to, in effect, introduce a layer of abstraction, allowing for changes in a data layer with no or minimal impact to service implementations.
实际上，它需要引入一个抽象层，以允许数据层的更改而不影响服务实现或将这种影响降到最低。
Business processes are encapsulated from a direct interaction with the application functions through this layer of service virtualization.
业务流程通过这个服务虚拟化层从与应用程序功能的直接交互封装。
The middleware layer can be thought of as a pure service layer.
中间件层可以被认为是一个纯粹的服务层。
Then, gradually, application functionality can be abstracted into services, which are managed via dependency injection and which reside in a proper service layer.
然后，程序功能就会渐渐的抽象为服务，它是通过依赖注射来管理的，并位于合适的服务层中。
When dealing with a separate service layer, it is essential that both the producing and consuming teams write automated tests.
处理分离的服务层时，提供服务和消费服务的团队都要编写自动化测试，这很重要。
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。
A SOA solution might exclude a business process layer, for example, and have the consumer and service layers interact directly.
例如，SOA解决方案可以不包括业务流程层，让使用者层与服务层直接交互。
Adding new end-user features and modifying existing ones can prove much simpler with a highly reusable service layer.
可以证明，对于高度可重用的服务层来说，添加新的最终用户功能和修改现有的功能要简单得多。
The role of a service implementation is to enforce the system of record's integrity, almost as a pure data access layer.
服务的实现目标是强化整个系统的集成能力；每个服务，本质上都可以看作是一个纯粹的数据接口层。
This security layer would encapsulate a Web service.
这个安全层可以封装一个Web服务。
Together, Seam and JSF can fluently integrate with either a stateless service layer or the EJB3 model.
Seam和JSF结合起来可以顺利地和任何无状态的服务层或EJB3模型进行集成。
Finally, EAz provides a convenient AuthorizationManager interface to wrap the details of the typical interaction and provide a simpler interface to the application's service layer.
最后，EAz为包装典型的交互详细信息提供一个方便的AuthorizationManager接口，并为应用程序的服务层提供一个更简单的接口。
A proxy is used to communicate between the presentation layer and service layer.
用代理(proxy)实现表现层与服务层之间的通信。
This layer ACTS as a filter and transformation Web service for the news feed layer that transforms it into a desired XML compatible format for the purposes of aggregation.
这一层用于为新闻feed层筛选和转换Web服务，并为了实现聚合而将其转换为所需的xml兼容格式。
Engineer a Web service layer on the Discussion database template to expose the key template functionality for consumption by a Web service client.
在 Discussion数据库模板上设计Web服务层以公开关键模板功能供 Web 服务客户机使用。
Solution: Therefore, introduce a specific layer of integration into the architecture for the integration of services and manage that layer through a service integrator.
解决方案：因此，可以将一个特定的集成层引入服务集成的体系结构中，并通过服务集成器来管理这一层。
You can then apply the service integrator to better flesh out such a layer.
接着您就可以应用服务集成器来更好地充实这个层次。
This is a challenge, since you could use the service layer to implement vastly different use cases, causing the service-layer caller to operate in dissimilar contexts.
这是一个挑战，因为您可能使用服务层来实现差别非常大的用例，从而导致服务层调用者在不一样的上下文中操作。
Another issue that can have a negative effect on service layer reusability is your exception handling strategy.
可能会对服务层可重用性产生负面影响的另一个问题是您的异常处理策略。
The three layers described above provide an integrated and standardized network platform to allow service providers to offer a variety of multimedia services in the service layer.
上面描述的三个层提供了一个集成的标准网络平台，以允许服务提供商在服务层中提供各种多媒体服务。
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