我可以在编写编码时省略多重性和角色名称吗 [英] Can I ommit the multiplixity and role name in writing coding

问题描述

将设计转换为代码时，可以省略多重性和角色名称.
如果不能，我该怎么写.
请对此进行讨论.


谢谢您，

When I convert design to code ,can I ommit the multiplixity and role name .
If I cannot ,how can I write this .
Plese discuss about this .


Thanks you,

推荐答案

如果我对您的理解正确，那么答案是否定的，您不必必须包含它们，但是您可以" d如果您忽略了它们，那将是一个很大的错误.

让我们考虑人.具体而言，人与人之间的关系.您可以负担零个或一个配偶，两个父母和尽可能多的孩子.您将为谁编码?如果多重性可以大于1，则它必须是数组或某种类型的集合.否则，每个角色都可以由一个简单的引用变量填充:

If I understand you correctly, then the answer is no, you do not have to include them but you''d be making a big mistake if you omitted them.

Let us consider people. Specifically, relationships between people. There can be zero or one spouse, two parents and as many children as you like / can afford. Who would you code this? If the multiplicity can be greater than 1 it must be either an array or a collection of some sort. otherwise each role can be filled by a simple reference variable:

public class Person {
    /** The spouse of this person */
    private Person spouse;
    /** The mother of this person */
    private Person mother;
    /** The father of this person */
    private Person father;
    /** The children of this person */
    private List<Person> children;
}

注意角色是如何导入成员变量 name 的.它不是必须的，您可以使用hatstand代替children；该变量也将起作用；但要了解它的作用并不容易.

Note how the role leads into the member variable name. It doesn''t have to, you could have hatstand instead of children; the variable would work just as well; but it isn''t easy reading it to know what it does.

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