2 요소의 요소 참조

내 질문의 제목을 지정하는 방법을 모르겠습니다.2 요소의 요소 참조

I는 다음과 같은 요소를 포함하는 XSD가

<xs:element name="abc"> 
    <xs:complexType> 
    <xs:element maxOccurs="unbounded" ref="ele1"/> 
    </xs:complexType> 
</xs:element> 

<xs:element name="xyz"> 
    <xs:complexType> 
    <xs:element maxOccurs="unbounded" ref="ele1"/> 
    </xs:complexType> 
</xs:element> 

<xs:element name="ele1"> 
    <xs:complexType> 
    <xs:attribute name="ID" type="xs:integer"/> 
    </xs:complexType> 
</xs:element>

질문 소자 xyzIDabc위한 것이 아닌 반면 필수이고; 어떻게 이것을 XSD에서 지정할 수 있습니까?

출처

2012-05-09 Satya Jasti

가정 ID는 "컨테이너"의 반복 내용에 대한 고유 식별자입니다, 당신은 XS를 설정할 수 있습니다 : 키 제약 조건을이 같은 XYZ를 위해 :

<?xml version="1.0" encoding="utf-8" ?> 
<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema"> 
    <xs:element name="abc"> 
     <xs:complexType> 
      <xs:sequence> 
       <xs:element maxOccurs="unbounded" ref="ele1"/> 
      </xs:sequence> 
     </xs:complexType> 
    </xs:element> 
    <xs:element name="xyz"> 
     <xs:complexType> 
      <xs:sequence> 
       <xs:element maxOccurs="unbounded" ref="ele1"/> 
      </xs:sequence> 
     </xs:complexType> 
     <xs:key name="PK_xyz"> 
      <xs:selector xpath="ele1"/> 
      <xs:field xpath="@ID"/> 
     </xs:key> 
    </xs:element> 
    <xs:element name="ele1"> 
     <xs:complexType> 
      <xs:attribute name="ID" type="xs:integer"/> 
     </xs:complexType> 
    </xs:element> 
</xs:schema>

그런 잘못된 XML을 ID가 없기 때문에 :

<?xml version="1.0" encoding="utf-8" standalone="yes"?> 
<!-- Sample XML generated by QTAssistant (http://www.paschidev.com) --> 
<xyz xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 
    <ele1 ID="1"/> 
    <ele1 /> 
</xyz>

오류 메시지 :이 (이 중복 때문에

Error occurred while loading [], line 5 position 3 
The identity constraint 'PK_xyz' validation has failed. Either a key is missing or the existing key has an empty node. 
Document3.xml is invalid.

잘못된 고유성에 위의 가정이 사실 서 있지 않는 경우 단점은)입니다 :

<?xml version="1.0" encoding="utf-8" standalone="yes"?> 
<!-- Sample XML generated by QTAssistant (http://www.paschidev.com) --> 
<xyz xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 
    <ele1 ID="1"/> 
    <ele1 ID="1"/> 
</xyz>

오류 :

Error occurred while loading [], line 5 position 3 
There is a duplicate key sequence '1' for the 'PK_xyz' key or unique identity constraint. 
Document3.xml is invalid.

하는 작업을 샘플 :

<?xml version="1.0" encoding="utf-8" standalone="yes"?> 
<!-- Sample XML generated by QTAssistant (http://www.paschidev.com) --> 
<xyz xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> 
    <ele1 ID="1"/> 
    <ele1 ID="2"/> 
</xyz>

출처

2012-05-09 17:14:41

2 요소의 요소 참조

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