图1显示了GCF的类层次结构。
前三个类构成了类层次结构的基类。
The first three classes constitute the base classes of the class hierarchy.
整个类层次结构使用一个数据实体。
考虑以下的int二元树的类层次结构。
Consider the following class hierarchy for binary trees of ints.
清单1. int二元树的类层次结构。
下一步就是将对象进行分类和创造类层次结构。
The next step in the OOA process is classification of objects and the creation of a class hierarchy.
图24显示OpenLaszlo中一些内置组件的类层次结构。
Figure 24 shows the class hierarchy of some of the built-in components in OpenLaszlo.
本文将提供一个小型类层次结构的例子，举例说明这个层次结构的概念。
This article gives you a simple example of a small class hierarchy to illustrate this concept.
该模型结合用户访问模式和类层次结构来检索用户需要的信息。
This model can help users to retrieve what they need by combining class hierarchy with user profile.
即使在映射文件中找不到Estate类，它仍然存在于类层次结构之中。
Even though the Estate class is nowhere to be found in our mapping file, it still exists in our class hierarchy.
在这一模型中，您创建的所有变量都将引用在总的类层次结构中创建的对象。
In this model, any variable you create references an object that has been created from the overall class hierarchy.
Spring的数据访问功能自动将数据访问异常转换为此异常类层次结构。
Spring's data access facilities automatically translate data-access exceptions into this exception class hierarchy.
Resources \Users . hrf ？定义资源类层次结构。
Resources \ Users.hrf - Defines the resource class hierarchy.
要以有效的方式访问Domino数据库，则需要创建一个域驱动的类层次结构。
To access the Domino database in an efficient way, you need to create a domain-driven class hierarchy.
图6显示了一个更新过的持久性模型，用于将整个类层次结构映射成一个数据实体。
Figure 6 presents the updated persistence model for mapping the entire class hierarchy into one data entity.
CIM表示类层次结构用于描述在正确定义了表示订阅后可以检测到的事件类型。
The CIM indication class hierarchy is used to describe the type of events that can be detected if the indication subscriptions are defined correctly.
该方法适合一类层次结构清晰、实时性强的系统的建模，如C4I系统。
This method ADAPTS to model the distinct hierarchy and high real-time system, such as C4I system.
对于第二个策略(每个类层次结构一个表)，您必须用检测约束定义您自己的完整性。
For our second strategy (one table per class hierarchy), you'll have to define your integrity using check constraints.
缺点是每次在类层次结构的任何地方添加一个新属性时都必须将一个新属性添加到表中。
The disadvantages are that every time a new attribute is added anywhere in the class hierarchy a new attribute must be added to the table.
类层次结构总会有一个根类(rootclass)，这是一个具有普遍行为的类。
A class hierarchy always has a root class; this is a class with very general behavior.
一定要查阅CppUnit文档来了解它的类层次结构，通过示例了解详细的安装信息。
Be sure to look into the CppUnit documentation for its class hierarchy and the examples that come with the installation for further details.
NET 2.0中数据绑定控件的类层次结构比asp.net 1. x中的更一致。
In ASP.NET 2.0, the class hierarchy of data-bound controls is more consistent than in ASP.NET 1.x.
您会注意到，TB_RIGHT表拥有保存right类层次结构的每个属性所需要的所有列。
You'll notice that the TB_RIGHT table possesses all the columns necessary to store every attribute of the Right class hierarchy.
对于我们的RIGHT层次结构，我们只使用一个表(tb_right)来保存整体类层次结构。
For our RIGHT hierarchy, we'll use a single table (TB_RIGHT) to store the entire class hierarchy.
将字段声明为受保护时，子类中的方法就有可能直接访问它们，这样就可能有效地增加类层次结构中的耦合。
When fields are declared protected, there is the possibility that methods in subclasses will directly access them, effectively increasing the coupling within a class hierarchy.
为了解决问题，OOP开发人员需要设计类层次结构，注意进行恰当的包装并按照类约定进行思考。
To solve problems, OOP developers design class hierarchies, focus on proper encapsulation, and think in terms of class contracts.
CDT使您可以比以往更轻松地创建这些类和类层次结构，以及更轻松地运行和调试应用程序进行测试。
CDT makes it easier than ever to create these classes and class hierarchies, and to run and debug the application to test it.
R的OOP 方式基于泛型函数（generic function），而不是基于类层次结构。
R's approach to OOP is based on generic functions rather than on class hierarchies.
使用这种方法，您可以将一个完整类层次结构映射成一个数据实体，而层次结构中所有类的所有属性都存储在这个实体中。
With this approach, you map an entire class hierarchy into one data entity, where all the attributes of all the classes in the hierarchy are stored.
使用这种方法，您可以将一个完整类层次结构映射成一个数据实体，而层次结构中所有类的所有属性都存储在这个实体中。
With this approach, you map an entire class hierarchy into one data entity, where all the attributes of all the classes in the hierarchy are stored.
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