这是命名模式吗? [英] Is this a named pattern?

问题描述

public class BanknoteDescriptor
{
    public double Value { get; set; }
    public string Currency { get; set; }
}

public class Banknote
{
    private BanknoteDescriptor _description;

    public Banknote(BanknoteDescriptor description)
    {
        _description = description;
    }

    public double Value
    {
        get { return _description.Value; }
    }
    public string Currency
    {
        get { return _description.Currency; }
    }

    // Overring in order to create a value object
    // ...
}

您好，

我有两个提供相同属性的类.第一个允许读取和写入他的所有属性，第二个只允许读取.我发现这样做更容易创建值对象，而不是一个巨大的构造函数(以后可能会有所不同).构建器模式涉及一个专门用于创建对象的类，在我看来，对于一个简单的值对象来说太多了".

I have two classes that provide the same properties. The first one allows reading and writing on all of his properties, the second one only allows reading. I find it easier to create value objects by doing so, instead of a huge constructor (that could vary later). Builder pattern involves a class dedicated in creating an object, and seems "too much" in my eyes, for a simple value object.

那么，问题是，这是一个命名模式吗?以前有人用过这种把戏吗?继续这样做我以后会遇到问题吗?

So, the questions are, is this a named pattern ? Did someone already use this kind of trick before ? Would I meet problems later by going on with that ?

推荐答案

如果我正确理解了您想要识别的代码的哪一部分，那么是的，它确实有一个通用名称.

If I correctly understood which exact part of your code you want identified then yes, it does have a common name.

引入一个封装参数列表的类，而不是一个巨大的构造函数，正如你所说的，你只有一个参数对象，称为引入参数对象，并且是列在 Fowler 的重构模式目录中.

Introducing a class that encapsulates a list of parameters so that instead of a huge constructor as you have said you have just one parameter object is called Introduce Parameter Object and is listed in Fowler's catalog of refactoring patterns.

http://www.refactoring.com/catalog/introduceParameterObject.html

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