XML/XML Schema/attribute

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Add namespace to attribute

   <source lang="xml">

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

                  xmlns:i="http://www.wbex.ru"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation=
                             "http://www.wbex.ru
                              Schema.xsd">
   <image/>
   <image i:src="http://www.wbex.ru/style/logo.png"/>

</images>

File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute ref="src"/>
       </xsd:complexType>
   </xsd:element>
   <xsd:attribute name="src" type="xsd:anyURI"/>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


Anonymous complexType with attribute

   <source lang="xml">

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

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

</images> File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute name="src" fixed="http://www.wbex.ru">
               <xsd:simpleType>
                   <xsd:restriction base="xsd:anyURI">
                       <xsd:enumeration value="http://www.wbex.ru"/>
                       <xsd:enumeration value="http://www.wbex.ru/style/logo.png"/>
                       <xsd:enumeration value="http://www.wbex.ru/isbn.html"/>
                   </xsd:restriction>
               </xsd:simpleType>
           </xsd:attribute>
       </xsd:complexType>
   </xsd:element>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


anyURI type attribute

   <source lang="xml">

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

        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.wbex.ru Schema.xsd">
        
       <image href="http://www.wbex.ru/Style/Logo.png"/>

</images> 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="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element name="image" maxOccurs="unbounded">
                   <xsd:complexType>
                       <xsd:attribute name="href" type="xsd:anyURI" use="required"/>
                   </xsd:complexType>
               </xsd:element>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


Attribute based on simple type with restriction and enumeration

   <source lang="xml">

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

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

   <image/>                              
   <image i:src="http://www.wbex.ru/style/logo.png"/>

</images> File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute ref="src"/>
       </xsd:complexType>
   </xsd:element>
   <xsd:attribute name="src" default="http://www.wbex.ru">
       <xsd:simpleType>
           <xsd:restriction base="xsd:anyURI">
               <xsd:enumeration value="http://www.wbex.ru"/>
               <xsd:enumeration value="http://www.wbex.ru/style/logo.png"/>
               <xsd:enumeration value="http://www.wbex.ru/isbn.html"/>
           </xsd:restriction>
       </xsd:simpleType>
   </xsd:attribute>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


attribute type and default value

   <source lang="xml">

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

                  xmlns:i="http://www.wbex.ru"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation=
                             "http://www.wbex.ru
                              Schema.xsd">
   <image/>                                             
   <image i:src="http://www.wbex.ru/style/logo.png"/>

</images> File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute ref="src"/>
       </xsd:complexType>
   </xsd:element>
   <xsd:attribute name="src" type="xsd:anyURI" default="http://www.wbex.ru"/>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


attribute with default value

   <source lang="xml">

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

                  xmlns:ex="http://www.wbex.ru"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation="http://www.wbex.ru Schema.xsd">
   <image/>
   <image src="http://www.wbex.ru/style/logo.png"/>

</images> File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute name="src" type="xsd:anyURI" default="http://www.wbex.ru"/>
       </xsd:complexType>
   </xsd:element>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


attribute with fixed value

   <source lang="xml">

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

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

</images> File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute name="src" type="xsd:anyURI" fixed="http://www.wbex.ru"/>
       </xsd:complexType>
   </xsd:element>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


Define fixed value for referenced attribute type

   <source lang="xml">

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

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

</images> File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute ref="src" fixed="http://www.wbex.ru"/>
       </xsd:complexType>
   </xsd:element>
   <xsd:attribute name="src" type="xsd:anyURI"/>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


fixed value for attribute type

   <source lang="xml">

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

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

</images> File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute ref="src"/>
       </xsd:complexType>
   </xsd:element>
   <xsd:attribute name="src" type="xsd:anyURI" fixed="http://www.wbex.ru"/>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


reference type as attribute type and default value

   <source lang="xml">

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

                  xmlns:i="http://www.wbex.ru"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation=
                             "http://www.wbex.ru
                              Schema.xsd">
   <image/>                                           
   <image i:src="http://www.wbex.ru/style/logo.png"/>

</images> File: Schema.xml <?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="image">
       <xsd:complexType>
           <xsd:attribute ref="src" default="http://www.wbex.ru"/>
       </xsd:complexType>
   </xsd:element>
   <xsd:attribute name="src" type="xsd:anyURI"/>
   <xsd:element name="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element ref="image" maxOccurs="2"/>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


Required attribute

   <source lang="xml">

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

        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.wbex.ru Schema.xsd">
       <image href="http://www.wbex.ru/Style/Logo.png"/>

</images> 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="images">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element name="image" maxOccurs="unbounded">
                   <xsd:complexType>
                       <xsd:attribute name="href" type="xsd:anyURI" use="required"/>
                   </xsd:complexType>
               </xsd:element>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>

</xsd:schema> 

</source>


Restriction on attribute

   <source lang="xml">

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

          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://www.wbex.ru Schema.xsd">
       <Book Category="autobiography" InStock="true" Reviewer="R1">
               <Title>title 1</Title>
               <Author>author 1</Author>
               <Date>2008</Date>
               <ISBN>1-11111-111-1</ISBN>
               <Publisher>Publisher 1</Publisher>
       </Book>
       <Book Category = "fiction" InStock = "false" Reviewer = "R2">
               <Title>title 2</Title>
               <Author>author 2</Author>
               <Date>2007</Date>
               <ISBN>0-111-11111-1</ISBN>
               <Publisher>Publisher 2</Publisher>
       </Book>

</Books>

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="Books">
       <xsd:complexType>
           <xsd:sequence>
               <xsd:element name="Book" maxOccurs="unbounded">
                   <xsd:complexType>
                       <xsd:sequence>
                           <xsd:element name="Title" type="xsd:string"/>
                           <xsd:element name="Author" type="xsd:string" maxOccurs="unbounded"/>
                           <xsd:element name="Date" type="xsd:string"/>
                           <xsd:element name="ISBN" type="xsd:string"/>
                           <xsd:element name="Publisher" type="xsd:string"/>
                       </xsd:sequence>
                       <xsd:attributeGroup ref="BookAttributes"/>
                   </xsd:complexType>
               </xsd:element>
           </xsd:sequence>
       </xsd:complexType>
   </xsd:element>
   <xsd:attributeGroup name="BookAttributes"> 
       <xsd:attribute name="Category" use="required">
           <xsd:simpleType>
               <xsd:restriction base="xsd:string">
                   <xsd:enumeration value="autobiography"/>
                   <xsd:enumeration value="non-fiction"/>
                   <xsd:enumeration value="fiction"/>
               </xsd:restriction>
           </xsd:simpleType>
       </xsd:attribute> 
       <xsd:attribute name="InStock" type="xsd:boolean" default="false"/>
       <xsd:attribute name="Reviewer" type="xsd:string" default="none"/>
   </xsd:attributeGroup>

</xsd:schema> 

</source>
Источник — «http://wbex.ru/index.php?title=XML/XML_Schema/attribute&oldid=10051»