在 XSD 中扩展复杂类型的示例? [英] Example of extending complex types in XSD?

问题描述

我试图在不破坏此元素现有合同的情况下使用元素内的数据.
让我们简化一下我的案例:

I am trying to use data within an element without breaking this element existing contract.
Let's simplify my case:

<xs:element name="ExistingContract">
     <xs:complexType>
          <xs:sequence>
               <xs:element name="first" type="FirstType"/>
               <xs:element name="second" type="SecondType"/>
          </xs:sequence> 
      </xs:complexType>
</xs:element>

<xs:element name="NewContract">
     <xs:complexType>
          <xs:sequence>
               <xs:element name="first" type="FirstType"/>
               <xs:element name="second" type="SecondType"/>
               <xs:element name="additionalData" type="AdditionalDataType"/>
          </xs:sequence> 
      </xs:complexType>
</xs:element>

这两个内部类型是重复的，我想避免它.由于内部数据没有任何现有的包装 xs:complexType，我可以从 ExistingContract 中取出它并在我的 NewContract 中使用它.但是我会打破第一份合同(我不想这样做).

These two inner types are duplicated, and I want to avoid it. Since there isn't any existing wrapping xs:complexType for the inner data, I can take it out from ExistingContract and use it in my NewContract. But then I will break the first contract (which I don't want to).

您是否熟悉任何 XSD 方法，我可以保持第一个合约不变并将其内部数据提取到我的新合约中?

Are you familiar with any XSD method that I can keep the first contract the same and extract its inner data to my new contract?

推荐答案

您可以使用 xs:extension 从 ExistingContractType 扩展 NewContractType :

You can use xs:extension to extend NewContractType from ExistingContractType:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xs:element name="ExistingContract" type="ExistingContractType"/>

  <xs:complexType name="ExistingContractType">
    <xs:sequence>
      <xs:element name="first" type="FirstType"/>
      <xs:element name="second" type="SecondType"/>
    </xs:sequence> 
  </xs:complexType>

  <xs:complexType name="NewContractType">
    <xs:complexContent>
      <xs:extension base="ExistingContractType">
        <xs:sequence>
          <xs:element name="additionalData" type="AdditionalDataType"/>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:element name="NewContract" type="NewContractType"/>

  <xs:complexType name="FirstType"/>
  <xs:complexType name="SecondType"/>
  <xs:complexType name="AdditionalDataType"/>

</xs:schema>

这篇关于在 XSD 中扩展复杂类型的示例?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！