oxy:is-required-element() Function

This function checks if the element returned by the given XPath expression is required (based on the rules declared in the schema). It has only one argument, an XPath expression, and the XPath expression must be written in such a way that it returns a single element.

Example: oxy:is-required-element Function
oxy:is-required-element(.)

This example would check to see if the current element is required by the schema.