Class VoidFn

All Implemented Interfaces:
Callable, FunctionItem, GroundedValue, Item, Sequence

public class VoidFn extends SystemFunction
This class implements the function fn:void(), which is a proposed function for XPath 4.0. The Saxon implementation always evaluates the argument, throwing an error if evaluation fails.
  • Constructor Details

    • VoidFn

      public VoidFn()
  • Method Details

    • call

      public Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
      Evaluate the expression
      Parameters:
      context - the dynamic evaluation context
      arguments - the values of the arguments, supplied as SequenceIterators
      Returns:
      the result of the evaluation, in the form of a SequenceIterator
      Throws:
      XPathException - if a dynamic error occurs during the evaluation of the expression