concrete class

The Abstract Server class here is closed for modification , and the concrete class implementations here are open for extension .

这里抽象服务类对修改是闭合的，实体类的实现对扩展是开放的。

However , you must map the fields for each concrete class .

但是，必须映射每个具体类的字段。

What if the code we have uses a concrete class in its implementation ?

如果我们拥有的代码在执行中使用一个具体的类该怎么办？

A concrete class that implements the DAO interface

一个实现了DAO接口的具体类

All you 've done here is take the same signature you used for the method in the actual concrete class .

在这里完成的所有操作是获得用于实际的具体类中方法的同一个签名。

To mock a concrete class , use the mock ( Class . class ," identifier ") method

要模拟具体类，则使用mock（Class.class，“identifier”）方法

For DI to work , you must have an interface whose concrete class you can inject into the consumer of the behavior you desire .

为了让DI工作，必须拥有一个接口，可以把这个接口的具体类注入到需要的行为的消费者中。

Our third and last strategy is probably the most imaginative of all : having one table per concrete class and none for the Estate abstract superclass .

我们的第三个，也是最后一个策略可能是三个策略当中最有想象力的：每个具体类一个表，抽象超类Estate没有表。

ScriptEngineManager is probably the only concrete class in the scripting package you 'll use regularly ; most of the rest are interfaces .

ScriptEngineManager可能是脚本包中惟一一个经常使用的具体类；其他大多数都是接口。

It also means that for high-level scenarios where developers might not understand abstract classes and inheritance , they can use the concrete class without having to learn these concepts .

同时意味着开发人员在进行高级别开发时，即使不了解抽象类和继承，也可以使用具体类而不必学习这些概念。

If you only have a concrete class , you can create an interface from the class , change your application code to program to the interface , and then proceed as described above .

如果您只有一个具体的类，那么您可以从类中创建一个接口，您的应用程序代码改写为接口，然后按照前面的描述继续进行。

Client classes can be coded to require only the abstract type , leaving the strategies and outcomes of implementation to the concrete class instances passed to them at run time .

客户机类可被编码为只需要抽象类型，而把实现策略和结果留给在运行时传递给它们的具体类实例。

" Table per Concrete Class using Implicit Polymorphism " is not recommended due to its verbose configurations , complex association syntax using " any " element and potentially dangerous implicit queries .

“使用隐式多态实现每个具体类一张表”这种做法并不推荐，因为其配置过于繁缛、使用“any”元素的复杂关联语法和隐式查询的潜在危险性。

In JUnit , for example , the Assertion class is a concrete class with a boatload of static assert methods , which the all-too-familiar TestCase class extends .

例如，在JUnit中，Assertion类是一个具体的类，其中包含许多static断言方法，我们熟悉的TestCase类会扩展这些方法。

The powerful as operator in Groovy takes a code block and generates a new class that implements the interface , which you can then call as if it were a concrete class implementing the interface .

Groovy中强大的as操作符接收一个代码块并生成一个新类来实现该接口，您可以像调用实现该接口的具体类一样调用它。

Eventually , in terms of categories , graphic symbols comply with the constructor methods of the six categories of Chinese characters , such as concrete class , abstract class , fit class and mutual context class .

最后在分类方面，图形符号也遵循了汉字六书的构造方法，分为具象类、抽象类、合体类和互文类四种。

The slab of base , lateral walls and the covers of the canals will be in concrete Class E ( 17.5 MPa ) and in agreement with the details indicated in the plans approved by GECELCA .

地基板、侧墙板和沟渠盖使用E级混凝土（17.5兆帕）建造，并与GECELCA的核准图所注明的细节一致。

The frame is that kind of target - oriented technology , It is made up of abstract class and concrete class that one group cooperates each other . Because of the support of the frame , the development of support application system that can be effective .

框架是一种面向对象的复用技术，它是由一组相互协作的抽象类和具体类组成，有了框架的支持，可以有效的支持应用系统的开发。

The concrete DAO class contains logic for accessing data from a specific data source .

具体的DAO类包含访问特定数据源的数据的逻辑。

The class is abstract with a static factory function that returns an instance of a concrete derived class .

阶级是抽象的同一个静态工厂函数返回的是一个具体的派生类。

You can simply instantiate it programmatically , but then your code will depend on a concrete implementation class .

可以简单地以编程方式对其进行实例化，但是这样的话，您的代码将依赖具体的实现类。

In this example , the Game class cannot know when to instantiate the concrete game class until the player makes this choice .

在此实例中，直到玩家选择为止，Game类才知道什么时候实例化具体的游戏类。

It seems ordinary enough that many cities are surrounded by concrete and class , but these skyscrapers still can take our breath away .

如今的人们似乎早已习惯生活在钢筋水泥的城市堡垒里，但是高耸如云的建筑仍然会让我们心跳加速兴奋不已。

In this section , we will model a concrete Java class ( instance of EClassX ) having two concrete methods whose implementation we will model .

在本节中，我们将对一个具体的Java类（EClassX的实例）进行建模，这个类包含两个具体的方法，我们将对这两个方法的实现进行建模。

The results as following : ( 1 ) During the revising course of the code , the definition of arch dams concrete strength class must be determined firstly .

在规范的修编过程中，首先要确定的是拱坝混凝土强度等级的定义。

The shearing strength becomes big with new concrete stress class and the shearing strength of the interface with cement paste mixed with 12 % U expanding agent is up to 75 % of the total one .

其抗剪强度随着新混凝土强度等级增加而增大；水泥膨胀浆界面剂可使其抗剪强度达到整体的75%。

As mentioned in the previous section , JAX-WS tools generate a concrete Service implementation class , also referred to as Static Service .

上节提到过，JAX-WS工具生成一个具体的服务实现类，这个类也称为静态服务（StaticService）。

The above line pairs the fully qualified class name of the concrete remote service class with a path name that is essentially the URL for this service .

上面一行把具体远程服务类的全限定类名与实质上为此服务URL的路径名组成一对。

Furthermore it introduces the choice of textbooks , emphasis of teaching , concrete organization of class , discusses the relative teaching methods and gives instructive suggestion to the problems existing in bilingual teaching .

介绍了有关教材的选择、教学的侧重点、课堂教学的具体组织，探讨了有关的教学方法和教学手段，并对双语教学中存在的问题。提出了建设性的意见。

Because among this thesis focal point to realize genetic algorithms , arrange in concrete while realizing class , not adopting the genetic algorithm , so the problem solved mainly in this thesis is how to utilize the genetic algorithm to solve the time interval of optimizing .

由于在本论文中重点是实现遗传算法，而排班在具体实现时，没有采用遗传算法，故在本论文中主要解决的问题是如何利用遗传算法解决优化发车间隔问题。