Using class abstraction to allow for future extensions.
使用类抽象实现未来扩展。
We like to refer to these types as making up an extended basic language of primitive built-in and primitive class abstraction types.
我们把这些类型看作是基本内置类型和基本类抽象类型的扩展基础语言。
The classes except for the discovered abstraction class do not have attributes and operations.
除去被发现的抽象类之外，其他类没有属性及操作。
The use of the class as the primary means of abstraction is key to object-oriented framework design.
作为抽象的主要方法，类的使用在面向对象框架设计中是很关键的。
You can implement abstraction by having realizations between the interfaces and the class implementations.
您可以通过实现接口和类执行来执行这些抽象操作。
Nor does a class diagram with implementation classes necessarily raise the level of abstraction.
具有实现类的类图不是必定提高抽象层次。
Here, we have experienced and explored a semi-automated method for generating a high-level abstraction of a UML class diagram.
这里，我们尝试并探索了，以半自动方法产生U ML类图的高层抽象方案。
Producing high-level abstraction class diagrams with aggregation and association relationships
产生具有聚合及关联关系的高层抽象性的类图
Because of the limitations of the DBI and relational databases in general, Class: : DBI is not completely successful in this abstraction, but it gets close enough for 90% of real-world projects.
由于DBI的局限和关系型数据库的广泛应用，Class： DBI在这一抽象中没有获得完全成功，但是它对90%的实际项目来说是足够的。
These constructs support the object-oriented form of encapsulation, where only the essential public abstraction of a class or trait is exposed and implementation information is hidden from view.
这些结构支持面向对象式的封装，即本质上只有类或者Trait的公共抽象会被暴露出来，内部实现则被隐藏于视界之下。
Figure 3 presents a class diagram for this abstraction layer.
图3展示了这一抽象层的类图。
Figures 2 and 3 show the rest of the steps required to produce a tree structure of an abstraction class diagram.
图2显示了得到一个抽象类图的树状结构所需的剩余步骤。
Show an abstraction class diagram by selecting a class from the abstraction list.
从抽象结构表中选择一个类从而显示其抽象类图。
The invoking application's class, which ACTS as the Web services client, deals only with the abstraction.
作为Web服务客户端的调用应用的类仅处理抽象。
Implementers who want to exploit an abstraction such as this need to inherit from the _templated class, like in the Listing 13.
想要开发这样一个抽象，实现者需要从_ templated类继承，如清单13所示。
Dojo provides a powerful abstraction that decouples the widget rendering definition from the widget behavior implementation: the dijit -._templated mix-in class.
Dojo提供了一个强大的抽象，即dijit - . _Templated混入类，可以将小部件呈现定义与小部件行为实现分离开来。
The PortletAdapter class is an implementation of the central portlet abstraction, the portlet interface.
PortletAdapter类是中心portlet抽象，即 portlet接口的一个实现。
The service class is an abstraction that represents a WSDL service.
service类是一个表示WSDL服务的抽象。
In Listing 2, the code first includes the necessary class file for the MDB2_Schema package, and then initializes the MDB2 abstraction layer by calling its static factory method.
在清单2中，代码首先包含了MDB2_Schema包所需的类文件，然后通过调用其静态方法factory以初始化mdb2抽象层。
To begin, the script includes the XML_Query2XML and MDB2 class files, and then initializes an instance of the MDB2 abstraction layer through its factory() method.
首先，脚本包含了 XML_Query2XML和MDB2类文件，然后通过它的factory() 方法初始化了一个 MDB2抽象层实例。
If a class that uses an abstraction has to downcast to a specific subclass in one section, you're not following the Open Closed Principle.
如果在某一部分中，一个抽象了的类必须向下转换为特定的子类，那么你就没有遵循开闭原则。
Functional language constructs such as higher-order and first-class functions allow me to climb one more rung up the abstraction ladder and focus more on what the code does rather than how it does it.
函数语言结构，如高阶和一级函数，能让我对抽象的理解更进一步，让我更多地将精力放在代码能做什么而不是怎么做 上。
A community-type, as a class-concept, is inescapably an abstraction .
群落类型，作为一个阶级概念，无疑也是一种抽象。
Choose one of the following abstractions (or an abstraction of your own choosing). Determine what data is needed in the class. Provide an appropriate set of constructors. Explain your decisions.
从下述抽象中选择一个(或一个自己定义的抽象)，确定类中需要什么数据，并提供适当的构造函数集。解释你的决定。
This metadata abstraction enables the storing of information that is the intersection of that which is specific to neither the class nor the interface.
此元数据抽象允许存储既不特定于该类也不特定于该接口的信息交集。
This metadata abstraction enables the storing of information that is the intersection of that which is specific to neither the class nor the interface.
此元数据抽象允许存储既不特定于该类也不特定于该接口的信息交集。
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