类层次

• It traverses the base class hierarchy of the class until it finds a primitive type
  ，则将遍历该类的基类层次结构，直到找到基元类型。
• I ve created a simple class in listing 1 to embody the notion of a class hierarchy
  我在清单1中创建了一个简单的类以具体表述类层次的概念。
• Values shared between two tables that are mapped inside the same class hierarchy
  要点在于，在同一类层次结构中映射的两个表之间，不必共享相同的
• For our second strategy one table per class hierarchy , you ll have to define your integrity using
  对于第二个策略（每个类层次结构一个表） ，您必须用
• The existing concurrence controls for a class hierarchy perform well only for specific environments
  目前的类层次并发控制技术只适合于一些特定的环境。
• Finally , we put it all together in a class hierarchy that makes code much easier to maintain
  最后，我们将所有这些放入一个类层次中，以使代码更容易维护。
• An operator in the wql where clause , that is used to retrieve instances from a class hierarchy
  Wql where子句中的一个运算符，用于从类层次结构中检索实例。
• It is easy to find such things as the class hierarchy and the constructor and member function options
  您能容易地找到类层次结构、构造函数、成员函数选项等信息。
• The cause to understand how this can happen , let s consider the following class hierarchy for binary trees
  为了理解这种情况发生的原因，我们来看看下面的二元树类层次结构：
• Hierarchical relationship . class hierarchies are useful when describing items that are a subtype of a more general class
  当描述作为更常规类的子类型的项时，类层次结构非常有用。