XML 스키마 사양이 이러한 경우를 처리하는 방법이 궁금합니다.
<xsd:element minOccurs="1" name="asdf"/>주어진 maxOccurs 없음-> 이것이 카디널리티 [1..1]입니까?
<xsd:element minOccurs="5" maxOccurs="2" name="asdf"/>나는 이것이 단순히 유효하지 않다고 생각합니까?
<xsd:element maxOccurs="2" name="asdf"/>카디널리티 [0..2] 또는 [1..2]입니까?
XML 스키마 사양이 이러한 경우를 처리하는 방법에 대한 "공식적인"정의가 있습니까?
답변:
minOccurs및 의 기본값 maxOccurs은 1입니다.
<xsd:element minOccurs="1" name="asdf"/>카디널리티는 [1-1]입니다. 참고 : minOccurs 속성 만 지정하면 maxOccurs의 기본값은 1이므로 1보다 클 수 없습니다.
<xsd:element minOccurs="5" maxOccurs="2" name="asdf"/>무효
<xsd:element maxOccurs="2" name="asdf"/>카디널리티는 [1-2]입니다. 참고 : maxOccurs 속성 만 지정하면 minOccurs의 기본값은 1이므로 1보다 작을 수 없습니다.
<xsd:element minOccurs="0" maxOccurs="0"/>요소를 금지하는 유효한 조합입니다.
자세한 내용은 http://www.w3.org/TR/xmlschema-0/#OccurrenceConstraints를 참조하십시오 .
자주 묻는 질문에 대한 새롭고 확장 된 답변 ...
minOccurs및 maxOccurs 기본값은1 입니다.<xsd:element name="A"/>수단 A이 필요 하며 정확히 한 번만 나타나야 합니다 .
<xsd:element name="A" minOccurs="0"/>평균 A은 선택 사항 이며 최대 한 번 나타날 수 있습니다 .
<xsd:element name="A" maxOccurs="unbounded"/>수단 A이 필요 하며 무제한으로 반복 될 수 있습니다 .
<xsd:element name="A" minOccurs="0" maxOccurs="unbounded"/>평균 A은 선택 사항 이며 무제한 반복 될 수 있습니다 .
일반적으로 minOccurs 값이 1 이상인 경우 요소가 나타나야합니다. 요소가 나타날 수있는 최대 횟수는 선언에서 maxOccurs 속성 값에 의해 결정됩니다. 이 값은 41과 같은 양의 정수이거나 최대 발생 횟수가 없음을 나타 내기 위해 제한이없는 용어 일 수 있습니다. minOccurs 및 maxOccurs 속성의 기본값은 1입니다. 따라서 comment와 같은 요소가 maxOccurs 속성없이 선언되면 요소가 두 번 이상 발생할 수 없습니다. minOccurs 속성에만 값을 지정하면 기본값 인 maxOccurs보다 작거나 같아야합니다 (예 : 0 또는 1). maxOccurs 속성에만 값을 지정하면 maxOccurs 속성 만 사용해야합니다. minOccurs의 기본값보다 크거나 같은, 즉 1 이상.
<element
maxOccurs = (nonNegativeInteger | unbounded) : 1
minOccurs = nonNegativeInteger : 1
>
</element>
예:
XML
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="country.xsl"?>
<country xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="country.xsd">
<countryName>Australia</countryName>
<capital>Canberra</capital>
<nationalLanguage>English</nationalLanguage>
<population>21000000</population>
<currency>Australian Dollar</currency>
<nationalIdentities>
<nationalAnthem>Advance Australia Fair</nationalAnthem>
<nationalDay>Australia Day (26 January)</nationalDay>
<nationalColour>Green and Gold</nationalColour>
<nationalGemstone>Opal</nationalGemstone>
<nationalFlower>Wattle (Acacia pycnantha)</nationalFlower>
</nationalIdentities>
<publicHolidays>
<newYearDay>1 January</newYearDay>
<australiaDay>26 January</australiaDay>
<anzacDay>25 April</anzacDay>
<christmasDay>25 December</christmasDay>
<boxingDay>26 December</boxingDay>
<laborDay>Variable Date</laborDay>
<easter>Variable Date</easter>
<queenBirthDay>21 April (Variable Date)</queenBirthDay>
</publicHolidays>
<states>
<stateName><Name>NSW - New South Wales</Name></stateName>
<stateName><Name>VIC - Victoria</Name></stateName>
<stateName><Name>QLD - Queensland</Name></stateName>
<stateName><Name>SA - South Australia</Name></stateName>
<stateName><Name>WA - Western Australia</Name></stateName>
<stateName><Name>TAS - Tasmania</Name></stateName>
</states>
<territories>
<territoryName>ACT - Australian Capital Territory</territoryName>
<territoryName>NT - Northern Territory</territoryName>
</territories>
</country>
XSD :
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="country">
<xs:complexType>
<xs:sequence>
<xs:element name="countryName" type="xs:string"/>
<xs:element name="capital" type="xs:string"/>
<xs:element name="nationalLanguage" type="xs:string"/>
<xs:element name="population" type="xs:double"/>
<xs:element name="currency" type="xs:string"/>
<xs:element name="nationalIdentities">
<xs:complexType>
<xs:sequence>
<xs:element name="nationalAnthem" type="xs:string"/>
<xs:element name="nationalDay" type="xs:string"/>
<xs:element name="nationalColour" type="xs:string"/>
<xs:element name="nationalGemstone" type="xs:string"/>
<xs:element name="nationalFlower" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="publicHolidays">
<xs:complexType>
<xs:sequence>
<xs:element name="newYearDay" maxOccurs="1" type="xs:string"/>
<xs:element name="australiaDay" maxOccurs="1" type="xs:string"/>
<xs:element name="anzacDay" maxOccurs="1" type="xs:string"/>
<xs:element name="christmasDay" maxOccurs="1" type="xs:string"/>
<xs:element name="boxingDay" maxOccurs="1" type="xs:string"/>
<xs:element name="laborDay" maxOccurs="1" type="xs:string"/>
<xs:element name="easter" maxOccurs="1" type="xs:string"/>
<xs:element name="queenBirthDay" maxOccurs="1" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="states">
<xs:complexType>
<xs:sequence>
<xs:element name="stateName" minOccurs="1" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="Name" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="territories">
<xs:complexType>
<xs:sequence>
<xs:element name="territoryName" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
XSL :
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="html" indent="yes" version="4.0"/>
<xsl:template match="/">
<html>
<body>
<xsl:for-each select="country">
<xsl:value-of select="countryName"/><br/>
<xsl:value-of select="capital"/><br/>
<xsl:value-of select="nationalLanguage"/><br/>
<xsl:value-of select="population"/><br/>
<xsl:value-of select="currency"/><br/>
<xsl:for-each select="nationalIdentities">
<xsl:value-of select="nationalAnthem"/><br/>
<xsl:value-of select="nationalDay"/><br/>
<xsl:value-of select="nationalColour"/><br/>
<xsl:value-of select="nationalGemstone"/><br/>
<xsl:value-of select="nationalFlower"/><br/>
</xsl:for-each>
<xsl:for-each select="publicHolidays">
<xsl:value-of select="newYearDay"/><br/>
<xsl:value-of select="australiaDay"/><br/>
<xsl:value-of select="anzacDay"/><br/>
<xsl:value-of select="christmasDay"/><br/>
<xsl:value-of select="boxingDay"/><br/>
<xsl:value-of select="laborDay"/><br/>
<xsl:value-of select="easter"/><br/>
<xsl:value-of select="queenBirthDay"/><br/>
</xsl:for-each>
<xsl:for-each select="states/stateName">
<xsl:value-of select="Name"/><br/>
</xsl:for-each>
</xsl:for-each>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
결과:
Australia
Canberra
English
21000000
Australian Dollar
Advance Australia Fair
Australia Day (26 January)
Green and Gold
Opal
Wattle (Acacia pycnantha)
1 January
26 January
25 April
25 December
26 December
Variable Date
Variable Date
21 April (Variable Date)
NSW - New South Wales
VIC - Victoria
QLD - Queensland
SA - South Australia
WA - Western Australia
TAS - Tasmania