Class RoundHalfToEven

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

public final class RoundHalfToEven extends SystemFunction
This class supports the round-to-half-even() function
  • Constructor Details

    • RoundHalfToEven

      public RoundHalfToEven()
  • Method Details

    • getCardinality

      public int getCardinality(Expression[] arguments)
      Determine the cardinality of the function.
      Overrides:
      getCardinality in class SystemFunction
      Parameters:
      arguments - the actual arguments supplied
      Returns:
      the most precise available cardinality that the function will return
    • 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 Sequences
      Returns:
      the result of the evaluation, in the form of a Sequence
      Throws:
      XPathException - if a dynamic error occurs during the evaluation of the expression
    • getElaborator

      public Elaborator getElaborator()
      Make an elaborator for this expression
      Overrides:
      getElaborator in class SystemFunction
      Returns:
      a suitable elaborator