XSD - <cualquier>

El elemento <any> se utiliza para ampliar la funcionalidad XSD. Se utiliza para extender un elemento complexType definido en un XSD por un elemento que no está definido en el esquema.

Considere un ejemplo: person.xsd ha definido personelemento complexType. address.xsd ha definidoaddress elemento complexType.

person.xsd

<?xml version = "1.0" encoding = "UTF-8"?>
<xs:schema xmlns:xs = "http://www.w3.org/2001/XMLSchema"
   targetNamespace = "http://www.tutorialspoint.com"
   xmlns = "http://www.tutorialspoint.com"
   elementFormDefault = "qualified">
   
   <xs:element name = "person">
      <xs:complexType >
         <xs:sequence>
            <xs:element name = "firstname" type = "xs:string"/>
            <xs:element name = "lastname" type = "xs:string"/>
            <xs:element name = "nickname" type = "xs:string"/>     
         </xs:sequence>
      </xs:complexType>
   </xs:element>
	
</xs:schema>

address.xsd

<?xml version = "1.0" encoding = "UTF-8"?>
<xs:schema xmlns:xs = "http://www.w3.org/2001/XMLSchema"
   targetNamespace = "http://www.tutorialspoint.com"
   xmlns = "http://www.tutorialspoint.com"
   elementFormDefault = "qualified">
   
   <xs:element name = "address">
      <xs:complexType>
         <xs:sequence>
            <xs:element name = "houseNumber" type = "xs:string"/>
            <xs:element name = "street" type = "xs:string"/>
            <xs:element name = "state" type = "xs:string"/>    
            <xs:element name = "zipcode" type = "xs:integer"/>   	  
         </xs:sequence>
      </xs:complexType>
   </xs:element>

</xs:schema>

Si queremos definir una persona con dirección en XML, la siguiente declaración no será válida.

person.xml

<?xml version = "1.0"?>
<class xmlns = "http://www.tutorialspoint.com"
   xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation = "http://www.tutorialspoint.com person.xsd
   http://www.tutorialspoint.com address.xsd">  

   <person>
      <firstname>Dinkar</firstname>
      <lastname>Kad</lastname>
      <nickname>Dinkar</lastname>
   
      <address>
         <houseNumber>101</firstname>
         <street>Sector-1,Patiala</lastname>
         <state>Punjab</lastname>
         <zipcode>301202<zipcode>
      </address>
   
   </person>
	
</class>

Utilice <xs: any>

Para validar el person.xml anterior, agregue <xs: any> al elemento person en person.xsd.

person.xsd

<?xml version = "1.0" encoding = "UTF-8"?>
<xs:schema xmlns:xs = "http://www.w3.org/2001/XMLSchema"
   targetNamespace = "http://www.tutorialspoint.com"
   xmlns = "http://www.tutorialspoint.com"
   elementFormDefault = "qualified">

   <xs:element name = "person">
      <xs:complexType >
         <xs:sequence>
            <xs:element name = "firstname" type = "xs:string"/>
            <xs:element name = "lastname" type = "xs:string"/>
            <xs:element name = "nickname" type = "xs:string"/>   
            <xs:any minOccurs = "0"/>		 
         </xs:sequence>
      </xs:complexType>
   </xs:element>
	
</xs:schema>

Ahora person.xml se validará con person.xsd y address.xsd.

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