XML Schema attributeGroup Element
Complete XML Schema Reference
Definition and Usage
The attributeGroup element is used to group a set of attribute declarations so that they can be incorporated as a group into complex type definitions.
Element Information
- Parent elements: attributeGroup, complexType, schema, restriction (both simpleContent and complexContent), extension (both simpleContent and complexContent)
Syntax
<attributeGroup
id=ID
name=NCName
ref=QName
any attributes
>
(annotation?),((attribute|attributeGroup)*,anyAttribute?))
</attributeGroup>
id=ID
name=NCName
ref=QName
any attributes
>
(annotation?),((attribute|attributeGroup)*,anyAttribute?))
</attributeGroup>
(The ? sign declares that the element can occur zero or one time, and the * sign declares that the element can occur zero or more times inside the attributeGroup element)
| Attribute | Description |
|---|---|
| id | Optional. Specifies a unique ID for the element |
| name | Optional. Specifies the name of the attribute group. Name and ref attributes cannot both be present |
| ref | Optional. Specifies a reference to a named attribute group. Name and ref attributes cannot both be present |
| any attributes | Optional. Specifies any other attributes with non-schema namespace |
Example 1
<xs:attributeGroup name="personattr">
<xs:attribute name="attr1" type="string"/>
<xs:attribute name="attr2" type="integer"/>
</xs:attributeGroup>
<xs:complexType name="person">
<xs:attributeGroup ref="personattr"/>
</xs:complexType>
<xs:attribute name="attr1" type="string"/>
<xs:attribute name="attr2" type="integer"/>
</xs:attributeGroup>
<xs:complexType name="person">
<xs:attributeGroup ref="personattr"/>
</xs:complexType>
The example above defines an attribute group named "personattr" which is used in a complex type named "person".
Complete XML Schema Reference
