元数据模型接口的实现类。
您可以使用Factory模式来创建实现接口的实现类的实例。
You can use a Factory pattern to create an instance of an implementation class that implements your interface.
如果需要JAXB实现，那么可以开发一个实现ws . rest . xmlbinding . service .XMLBindingService接口的实现类。
If JAXB implementation is required, then an implementation class can be developed which implements the ws.rest.xmlbinding.service.XMLBindingService interface.
这两个文件都是接口，类的实现在子目录impl下。
Both are interfaces, with implementation classes within the sub-directory called impl.
清单2 中的EventService接口实现类演示了此方法。
The EventService interface implementation class in Listing 2 demonstrates this approach.
Factory——返回委托接口实现的类。
Factory -- a class that returns a delegate interface implementation.
然而，在业务接口模式下，实现类还将需要实现新的业务接口(在这种情况下，是ILibrary接口)。
Under the business interface pattern, however, the implementation classes will also need to implement your new business interface (in this case, the ILibrary interface).
此时，您应该有一个客户端类、一个接口、以及一个实现接口的类。
At this point, you should have a client class, an interface, and one class that implements the interface.
实现了这个接口的类可以适配到另一接口。
Classes implementing this interface can be adapted to another interface.
例如，系统类是不可修改的，而用户定义接口类虽然可以修改，但是不能包含实际的实现代码。
System classes, for instance, are not modifiable, while user-defined interface classes can be modified, but can't include actual implementation code.
它们分别是消息队列框架接口包中每个抽象类和接口的实现。
These are the respective implementations of each abstract class and interface in the message queue framework interface package.
基本的解决方案是定义可以用静态编译的代码访问的基类或者接口，然后生成的类扩展这个基类或者实现这个接口。
The basic solution is to define a base class or interface that can be accessed by the statically compiled code, then extend that base class or implement that interface in the generated class.
每个转换扩展定义，就像子元素一样，指定实现规则接口的类的规则定义。
Each transformation extension defines, as child elements. a rule definition that specifies a class that implements a rule interface.
创建自定义HTTP模块和HTTP处理程序是相对简单的任务，包括创建实现正确接口的托管类。
Creating custom HTTP modules and HTTP handlers are relatively simple tasks, which involve created a managed class that implements the correct interface.
该算法使用了可序列化的名称、类实现的所有接口的名称、可序列化类的所有数据成员，等等。
The algorithm USES the name of the serializable class, names of all the interfaces it implements, all the data members of the serializable class, etc.
图1说明了用户定义的带注释的方法接口、代码生成器和生成的实现类之间的关系。
Figure 1 illustrates the relationship between the user-defined data access interface, the code generator, and the generated implementation class.
创建完整大小应用程序的组织包、界面和类结构，即使这些文件的作用只是声明最初实现的类名称和接口。
Create the full-size application's organizational package, interface, and class structure, even if the files do nothing more than declare the class name and the interface it implements initially.
就算多重接口继承允许我们构造对应的接口集，但是实现这些接口的类不能直接遵循该结构。
Granted, multiple interface inheritance would allow us to construct a corresponding set of interfaces, but the classes implementing these interfaces couldn't follow the structure directly.
在清单9中，格式化地址的代码被移到接口、实现类和工厂中—养成“使用接口”的习惯。
In Listing 9, the code that formatted the address is moved to interfaces, implementation classes, and a factory - building the "use interfaces" habit.
强制对接口进行依赖，可以提供各种实现了接口的合约的实现类。
Forcing the dependencies on interfaces allows you to provide a variety of implementation classes that implement the interface's contract.
如果将扩展点看作接口，那么扩展就是实现该接口的类。
If you think of an extension point as an interface, you can think of an extension as a class that implements that interface.
下面的图1中的蓝框显示了XMSAPI接口实现的主要类或实体。
The blue boxes in Figure 1 below show the main classes or entities that are implemented by the XMS API interface.
一个实现了dao接口的具体类。
例如，清单1显示了四个均实现Math接口的类。
For example, Listing 1 shows four classes that all implement the Math interface.
对于通过WidgetCo生产的每一种独特类型的部件，IT部门的编程人员编写了实现Widget接口的类。
For each unique type of widget manufactured by WidgetCo, the it department's programmers write a class that implements the widget interface.
清单1的代码包含一个Web服务接口定义和对应的实现类。
The Listing 1 code consists of a Web service interface definition and the corresponding implementation class.
该接口的实现是由creditlinking类提供的。
正如在前面一节看到的，资源适配器支持的每个mdb接口都给出实现ActivationSpec接口的类的名称，如清单8所示。
As you saw in the previous section, each MDB interface that a resource adapter supports gives the name of a class implementing the ActivationSpec interface, shown in Listing 8.
生成的类实现CustomerData接口。
生成的类实现CustomerData接口。
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