问题
Assuming that I have this XML:
<parameters>
<parameter type="string" isVisible="True" optional="False" id="DealerCode">
<DealerCode>ABCDEF001</DealerCode>
</parameter>
</parameters>
I used a Xml-Schema generator to generate me a basic one. This results in this:
<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" attributeFormDefault="unqualified" elementFormDefault="qualified">
<xs:element name="DealerCode" type="xs:string"/>
<xs:element name="parameter">
<xs:complexType>
<xs:sequence>
<xs:element ref="DealerCode"/>
</xs:sequence>
<xs:attribute type="xs:string" name="type"/>
<xs:attribute type="xs:string" name="isVisible"/>
<xs:attribute type="xs:string" name="optional"/>
<xs:attribute type="xs:string" name="id"/>
</xs:complexType>
</xs:element>
<xs:element name="parameters">
<xs:complexType>
<xs:sequence>
<xs:element ref="parameter"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
The naming of the element DealerCode is dependent to the identifier of the parameter element. For example if the parameter has the identifier ZIP
, the sub-element of parameter should also be named that way. How can I achieve this in the Xml-Schema?
Example:
<parameter type="string" isVisible="True" optional="False" id="DealerCode">
<DealerCode>ABCDEF001</DealerCode>
</parameter>
<parameter type="string" isVisible="True" optional="False" id="ZIP">
<ZIP>ABCDEF001</ZIP>
</parameter>
回答1:
XSD 1.0
Not possible. Options:
- Use
xs:any
and check out-of-band with respect to XSD. Redesign your XML by replacing the generic
parameter
with the specific element it wraps:<DealerCode type="string" isVisible="True" optional="False">ABCDEF001</DealerCode>
XSD 1.1
Possible using xs:assert
:
<xs:assert test="*/local-name() = @id"/>
Here it is in context of your complete XSD, which will successfully validate your XML:
<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified"
elementFormDefault="qualified"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning"
vc:minVersion="1.1">
<xs:element name="DealerCode" type="xs:string"/>
<xs:element name="parameter">
<xs:complexType>
<xs:sequence>
<xs:any/>
</xs:sequence>
<xs:attribute type="xs:string" name="type"/>
<xs:attribute type="xs:string" name="isVisible"/>
<xs:attribute type="xs:string" name="optional"/>
<xs:attribute type="xs:string" name="id"/>
<xs:assert test="*/local-name() = @id"/>
</xs:complexType>
</xs:element>
<xs:element name="parameters">
<xs:complexType>
<xs:sequence>
<xs:element ref="parameter" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
来源:https://stackoverflow.com/questions/40929963/dependent-naming-of-xml-element-in-xml-schema