XML Schema selector Element
 Complete XML Schema Reference
Definition and Usage
The selector element specifies an XPath expression that selects a set of
elements for an identity constraint (unique, key, and keyref elements).
Element Information
- Parent elements: key, keyref, unique
Syntax
<selector
id=ID
xpath=a subset of XPath expression
any attributes
>
(annotation?)
</selector>
|
(The ? sign declares that the element can occur zero or one time
inside the selector element)
| Attribute |
Description |
| id |
Optional. Specifies a unique ID for the element |
| xpath |
Required. Specifies an XPath expression, relative to
the element being declared, that identifies the child elements to which the identity constraint applies |
| any attributes |
Optional. Specifies any other attributes with non-schema
namespace |
Complete XML Schema Reference
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