如何在MagicDraw中创建抽象类 [英] How to create abstract class in MagicDraw

问题描述

我是MagicDraw的新手，我想知道如何将一个类指定为{抽象}.

I'm newbie in MagicDraw and I'd like to know how to specify a class as {abstract}.

我知道类规范"中的属性是抽象的"，但我希望它出现在标题中.

I know about de property "Is abstract" in the Specification of Class, but I'd like that it appears in the header.

推荐答案

在MagicDraw中设置isAbstract的位置在该类的规范窗口中.要打开该窗口，请在班级上单击鼠标右键，或在选定班级时按Enter键.窗口将如下所示:

The place where you set isAbstract in MagicDraw is in the specification window for the class. To open that window, either right-click on the class or press enter while it is selected. The window will look like this:

您没有特别要求提供更多信息，但如果您认为有帮助，我会提供.

You didn't specifically ask for more information, but I'll provide it in case you find it helpful.

您要创建的模型如下所示:

The model you want to create will look like this:

请注意，Abstract Class用斜体字表示它是抽象的.还要注意，为通用化集指定了{complete, disjoint}. (仅供参考，{complete}也称为覆盖公理.)

Notice that Abstract Class is written in italics to indicate it is abstract. Also notice that {complete, disjoint} is specified for the generalization set. (Just FYI, {complete} is also known as a covering axiom.)

请注意，如果您未指定{complete}，则会与isAbstract元属性产生冲突.发生冲突的原因是，在UML中，默认值为{incomplete}，这意味着您可以创建超类的实例，而不必同时将其作为子类之一的实例.与isAbstract冲突.

Beware that if you do not specify {complete}, you're creating a conflict with the isAbstract meta-property. The reason there's a conflict is that in UML, the default is {incomplete}, which means that you are allowed to create an instance of the super-class without it also being an instance of one of the sub-classes. That conflicts with isAbstract.

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