XSD1.1允许元素的类型依赖于它的一个属性。例如,
<integer kind='s'>100</integer>
将导致“元素”的类型为 xs:short。这是我得到的:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning"
elementFormDefault="qualified"
attributeFormDefault="unqualified"
vc:minVersion="1.1">
<xs:complexType name="GenericInt">
<xs:simpleContent>
<xs:extension base="xs:integer">
<xs:attribute name="kind" type="xs:string"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:element name="integer" type="GenericInt">
<xs:alternative test="@kind='b'" type="xs:byte"/>
<xs:alternative test="@kind='s'" type="xs:short"/>
<xs:alternative test="@kind='i'" type="xs:int"/>
<xs:alternative test="@kind='l'" type="xs:long"/>
<xs:alternative type="GenericInt"/>
</xs:element>
</xs:schema>
当我尝试将文件保存在 Altova XMLSpy 中时,发生错误:cos-st-derived-ok.2: Simple type definition 'xs:byte' is not validly derived from 'GenericInt'。
那么我应该如何更正 XSD 代码呢?