XML Schema

Name

xs:attributeGroup(reference) — Reference to a global attributes group declaration.

Synopsis

<xs:attributeGroup
           id           = xs:ID
           ref          = xs:QName
           {any attributes with non-schema namespace}
           >
           Content: (xs:annotation?)
</xs:attributeGroup>

May be included in: xs:attributeGroup (global definition), xs:complexType (local definition), xs:complexType (global definition), xs:extension (complex content), xs:extension (simple content), xs:restriction (complex content), xs:restriction (simple content)

Description

Any non-top-level occurrence of xs:attribute is a reference to an attribute group that acts like a replacement of the group by the attributes (or attribute group references) embedded in the group.

Restrictions

None.

Example

<xs:element name="book">
  <xs:complexType>
    <xs:sequence>
      <xs:element ref="isbn"/>
      <xs:element ref="title"/>
      <xs:element ref="author" minOccurs="0" maxOccurs="unbounded"/> 
      <xs:element ref="character" minOccurs="0"
        maxOccurs="unbounded"/>
    </xs:sequence>
    <xs:attributeGroup ref="bookAttributes"/>
  </xs:complexType>
</xs:element>

Attributes

id

W3C XML Schema’s element ID.

ref

Qualified name of the attribute group to reference.