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如何在UML图中表示STL Map？

发布于 2024-09-18 04:24:14 字数 353 浏览 5 评论 0原文

可能的重复：
如何在 UML 类图中描述包含的映射？< /a>

我想要 UML 图中的 STL MAP 符号。

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十六岁半 2024-09-25 04:24:14

取决于您想要建模的内容以及建模方式。我多次只是对包含映射的类的组合/聚合关系与映射存储的元素进行建模，并向该关系添加一个属性：

class MyEnclosingType {
   std::map<int,MyEnclosedType*> m_map;
};

MyEnclosingType <>-------------------------- MyEnclosedType
                         << map >>

根据您使用的工具，有些工具确实可以识别它。例如BoUML，IIRC，会自动绘制类似的东西：

MyEnclosingType <>-------------------------- MyEnclosedType
                              ^
                              |
                              | << bind Key=int >>
                              |
                             map

我不认为它完全像那样，但在某种程度上相似。归根结底，UML 是一个供人阅读的工具，而不是供计算机使用的工具。如果您确实相信代码生成（祝您好运），那么问题是您的软件需要使用什么奇怪的构造来理解您的意图。

其他一些工具将具有 STL 或允许您添加参数化类型，您可以使用它来表示相同的代码

                                                 Key=string
                                                 Value=MyEnclosedType
MyEnclosingType <>-------------------------- map

：框，Key 和 Value 将由与其他参数化类型一样与 map 框重叠的不连续框表示。

我会尝试使用您选择的工具对带有地图的简单代码示例进行逆向工程，并查看该工具为您生成什么。如果您不喜欢它，请考虑一下您可以做些什么，以便利用工具的功能尽可能多地洞察问题。

Depending on what you want to model and how. I have many times just modeled the composition/aggregation relationship of the class containing the map to the map stored elements and added an attribute to the relationship:

class MyEnclosingType {
   std::map<int,MyEnclosedType*> m_map;
};

MyEnclosingType <>-------------------------- MyEnclosedType
                         << map >>

Depending on the tool you are using, some do recognize it. For example BoUML, IIRC, will automatically draw something similar to this:

MyEnclosingType <>-------------------------- MyEnclosedType
                              ^
                              |
                              | << bind Key=int >>
                              |
                             map

I don't think it was exactly like that, but somehow similar. At the end UML is a tool for people to read, not for computers. If you do believe in code generation (good luck) then the question is what strange construct you need to use for your software to understand your intentions.

Some other tools will have the STL or allow you to add parametrized types and you can use that to represent the same code as:

                                                 Key=string
                                                 Value=MyEnclosedType
MyEnclosingType <>-------------------------- map

Where both MyEnclosingType and map would be surrounded by solid boxes, and Key and Value would be represented by a discontinuous box overlapping the map box as with other parametrized types.

I would try to reverse engineer a simple code sample with a map with your tool of choice and see what the tool generates for you. If you don't like it, just think on what you can do to actually offer as much insight to the problem as you can with what the tools enables you to.

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