Xsd 如何在XML模式中将complexType限制为特定值？
我正在尝试在XML模式中使用限制进行某种形式的组合 我有一个Xsd 如何在XML模式中将complexType限制为特定值？,xsd,composition,restriction,Xsd,Composition,Restriction,我正在尝试在XML模式中使用限制进行某种形式的组合 我有一个complexType，可以在其他几个complexType中重用。我想指定FieldA在FullTypeA中包含PartialType时必须是一个值，在FullTypeB中包含时必须是另一个值 <xs:complexType name="PartialType"> <xs:sequence> <xs:element name="FieldA" type="xs:unsignedSh
complexTypecomplexTypeFieldAFullTypeAPartialTypeFullTypeB<xs:complexType name="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" />
<xs:element name="FieldB" type="xs:unsignedShort" />
</xs:sequence>
</xs:complexType>
<!-- FieldA must be 1 for FullTypeA-->
<xs:complexType name="FullTypeA">
<xs:sequence>
<xs:element ref="PartialType" />
<xs:element name="FieldC" type="xs:unsignedShort" />
</xs:sequence>
</xs:complexType>
<!-- FieldA must be 2 for FullTypeB-->
<xs:complexType name="FullTypeB">
<xs:sequence>
<xs:element ref="PartialType" />
<xs:element name="FieldD" type="xs:unsignedShort" />
</xs:sequence>
</xs:complexType>
我应该如何构造XML模式以适应这种情况？我认为Xsd实际上不允许这样做 实现这一点的一种可能方法是使用
xs:restriction<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:choice>
<xs:element name="FieldC" type="xs:unsignedShort" />
<xs:element name="FieldD" type="xs:unsignedShort" />
</xs:choice>
</xs:sequence>
</xs:complexType>
<xs:complexType name="FullTypeA">
<xs:complexContent>
<xs:restriction base="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" fixed="1" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:element name="FieldC" type="xs:unsignedShort" />
</xs:sequence>
</xs:restriction>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="FullTypeB">
<xs:complexContent>
<xs:restriction base="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" fixed="2" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:element name="FieldD" type="xs:unsignedShort" />
</xs:sequence>
</xs:restriction>
</xs:complexContent>
</xs:complexType>
</xs:schema>
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="PartialType">
<xs:sequence>
<xs:element name="FieldB" type="xs:unsignedShort" />
</xs:sequence>
</xs:complexType>
<xs:complexType name="FullTypeA">
<xs:complexContent>
<xs:extension base="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" fixed="1" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:element name="FieldC" type="xs:unsignedShort" />
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="FullTypeB">
<xs:complexContent>
<xs:extension base="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" fixed="2" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:element name="FieldD" type="xs:unsignedShort" />
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
</xs:schema>
我认为Xsd实际上不允许这样做 实现这一点的一种可能方法是使用
xs:restriction<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:choice>
<xs:element name="FieldC" type="xs:unsignedShort" />
<xs:element name="FieldD" type="xs:unsignedShort" />
</xs:choice>
</xs:sequence>
</xs:complexType>
<xs:complexType name="FullTypeA">
<xs:complexContent>
<xs:restriction base="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" fixed="1" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:element name="FieldC" type="xs:unsignedShort" />
</xs:sequence>
</xs:restriction>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="FullTypeB">
<xs:complexContent>
<xs:restriction base="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" fixed="2" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:element name="FieldD" type="xs:unsignedShort" />
</xs:sequence>
</xs:restriction>
</xs:complexContent>
</xs:complexType>
</xs:schema>
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="PartialType">
<xs:sequence>
<xs:element name="FieldB" type="xs:unsignedShort" />
</xs:sequence>
</xs:complexType>
<xs:complexType name="FullTypeA">
<xs:complexContent>
<xs:extension base="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" fixed="1" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:element name="FieldC" type="xs:unsignedShort" />
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="FullTypeB">
<xs:complexContent>
<xs:extension base="PartialType">
<xs:sequence>
<xs:element name="FieldA" type="xs:unsignedShort" fixed="2" />
<xs:element name="FieldB" type="xs:unsignedShort" />
<xs:element name="FieldD" type="xs:unsignedShort" />
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
</xs:schema>