XML Schema selector-element
Definitie en gebruik
De selector-element specificeert de XML-padtaal (XPath)-expressie, die een groep elementen (unique, key en keyref-elementen) identificeert die een beperking kiezen.
Element Information
| Occurrence | Once |
| Parent Element | key, keyref, unique |
| Content | annotation |
Syntax
<selector id=ID xpath=a subset of XPath expression any attributes > (annotation?) </selector>
| Attributes | Description |
|---|---|
| id | Optional. Specify the unique ID of the element. |
| xpath | Required. Specify the XPath expression relative to the declared element. This expression identifies the child elements that apply the identified constraint (the declared element). |
| any attributes | Optional. Specify any other attributes with non-schema namespace. |
