XML/XML Schema/choice — различия между версиями

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Текущая версия на 11:26, 26 мая 2010

choice minOccurs="0" maxOccurs="unbounded"

   <source lang="xml">

File: Data.xml <?xml version="1.0"?> <employees xmlns="http://www.wbex.ru/employees" 

 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.wbex.ru/employees Schema.xsd">
 <employee>
   <name>
     <first>first</first>
     <middle>middle</middle>
     <last>last</last>
   </name>
   <location>
     <address>USA</address>
     <latitude>123</latitude>
     <longitude>123</longitude>
   </location>
   <phone>001</phone>
   <knows />
   <description>
     test
     em
     test
     

     test
     strong
     test
   </description>
 </employee>

</employees> File: Schema.xsd <?xml version="1.0"?> <schema xmlns="http://www.w3.org/2001/XMLSchema" 

 xmlns:employees="http://www.wbex.ru/employees"
 targetNamespace="http://www.wbex.ru/employees"
 elementFormDefault="qualified">
 <element name="employees">
   <complexType>
     <sequence>
       <element name="employee" minOccurs="0"
         maxOccurs="unbounded">
         <complexType>
           <sequence>
             <element name="name"
               type="employees:NameType" />
             <element name="location"
               type="employees:LocationType" />
             <element name="phone" type="string" />
             <element name="knows"
               type="employees:KnowsType" />
             <element name="description"
               type="employees:DescriptionType" />
           </sequence>
         </complexType>
       </element>
     </sequence>
   </complexType>
 </element>
 <complexType name="NameType">
   <group ref="employees:NameGroup" />
 </complexType>
 <group name="NameGroup">
   <sequence>
     <element name="first" type="string" minOccurs="1"
       maxOccurs="unbounded" />
     <element name="middle" type="string" minOccurs="0"
       maxOccurs="1" />
     <element name="last" type="string" />
   </sequence>
 </group>
 <complexType name="LocationType">
   <choice minOccurs="0" maxOccurs="unbounded">
     <element name="address" type="string" />
     <sequence>
       <element name="latitude" type="string" />
       <element name="longitude" type="string" />
     </sequence>
   </choice>
 </complexType>
 <complexType name="KnowsType"></complexType>
 <complexType name="DescriptionType" mixed="true">
   <choice minOccurs="0" maxOccurs="unbounded">
     <element name="em" type="string" />
     <element name="strong" type="string" />
     <element name="br" type="string" />
   </choice>
 </complexType>

</schema> 

</source>


Choice with three elements

   <source lang="xml">

File: Data.xml <?xml version="1.0"?> <airport xmlns="http://www.wbex.ru" 

          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation= "http://www.wbex.ru Schema.xsd">
       <plane>data</plane>

</airport> File: Schema.xsd <?xml version="1.0"?> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" 

           targetNamespace="http://www.wbex.ru"
           xmlns="http://www.wbex.ru"
           elementFormDefault="qualified">
   <xsd:element name="airport">
       <xsd:complexType>
           <xsd:choice>
               <xsd:element name="train" type="xsd:string"/>
               <xsd:element name="plane" type="xsd:string"/>
               <xsd:element name="automobile" type="xsd:string"/>
           </xsd:choice>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


complexType mixed="true" and choice

   <source lang="xml">

File: Data.xml <?xml version="1.0" standalone="yes"?> <Recipe xmlns:xsi="http://www.w3.org/2001/10/XMLSchema-instance"> 

 <title>title</title>
 <Body>
   text
   <ingredient>inner</ingredient>
   test
   <ingredient>inner</ingredient>
   after
 </Body>

</Recipe>

File: Schema.xsd <?xml version="1.0" encoding="UTF-8"?> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" 

 elementFormDefault="qualified">
 <xsd:element name="Recipe">
   <xsd:complexType>
     <xsd:sequence>
       <xsd:element ref="title" />
       <xsd:element ref="Body" />
     </xsd:sequence>
   </xsd:complexType>
 </xsd:element>
 <xsd:element name="title" type="xsd:string">
 </xsd:element>
 <xsd:element name="Body">
   <xsd:complexType mixed="true">
     <xsd:choice>
       <xsd:element ref="ingredient" minOccurs="0"
         maxOccurs="unbounded" />
     </xsd:choice>
   </xsd:complexType>
 </xsd:element>
 <xsd:element name="ingredient" type="xsd:string">
 </xsd:element>

</xsd:schema> 

</source>


Use choice to define elements with random number and occurence

   <source lang="xml">

File: Data.xml <?xml version="1.0"?> <binary-string xmlns="http://www.wbex.ru" 

          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://www.wbex.ru Schema.xsd">
       <one/>
       <one>1</one>
       <zero/>
       <one>1</one>
       <zero>0</zero>

</binary-string> File: Schema.xsd <?xml version="1.0"?> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" 

           targetNamespace="http://www.wbex.ru"
           xmlns="http://www.wbex.ru"
           elementFormDefault="qualified">
   <xsd:element name="binary-string">
       <xsd:complexType>
           <xsd:choice minOccurs="0" maxOccurs="unbounded">
               <xsd:element name="zero" type="xsd:unsignedByte" fixed="0"/>
               <xsd:element name="one" type="xsd:unsignedByte" fixed="1"/>
           </xsd:choice>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>
Источник — «http://wbex.ru/index.php?title=XML/XML_Schema/choice&oldid=10127»