sc.schema

sc.schema(
   [$arg as Item]
) as schemaRoot()?

Summary

Returns the root schema of the item. The context item is used if no argument is given.

• If the item is a document node, the result is the schema of its root element.
• If the item is an element node, the result is the schema of its element declaration.
• If the item is an attribute node, the result is the schema of its attribute declaration.
• If the item is a schema component, the result is the containing schema.
• If the item is an atomic value, the result is the schema containing the type of that atomic value.
• In other cases, the result is the empty sequence.

Example

fn.head(xdmp.unquote('<th:thesaurus xmlns:th="http://marklogic.com/xdmp/thesaurus">\n\
  <th:entry><th:term>dog</th:term>\n\
     <th:synonym><th:term>canine</th:term></th:synonym>\n\
  </th:entry>\n\
</th:thesaurus>')).root.xpath(
  '//th:entry/sc:schema()!sc:component-property("schema-location")',
  {th:"http://marklogic.com/xdmp/thesaurus"});
  =>
"thesaurus.xsd"