Class SefFunction

All Implemented Interfaces:
Callable, Function, GroundedValue, Item, Sequence
Direct Known Subclasses:
XPath40FunctionSet.HighestOrLowest

public class SefFunction extends SystemFunction
Represents a system function whose implementation is written in XSLT, and which is implemented here by loading the pre-compiled code from a system SEF file.
  • Field Details

  • Constructor Details

    • SefFunction

      public SefFunction()
  • Method Details

    • setDetails

      public void setDetails(BuiltInFunctionSet.Entry entry)
      Set the details of this type of function
      Overrides:
      setDetails in class SystemFunction
      Parameters:
      entry - information giving details of the function signature and other function properties
    • makeFunctionCall

      public Expression makeFunctionCall(Expression... arguments)
      Make an expression that either calls this function, or that is equivalent to a call on this function
      Overrides:
      makeFunctionCall in class SystemFunction
      Parameters:
      arguments - the supplied arguments to the function call
      Returns:
      either a function call on this function, or an expression that delivers the same result
    • callFunction

      protected Sequence callFunction(XPathContext context, SymbolicName.F name, Sequence[] args) throws XPathException
      Throws:
      XPathException
    • call

      public Sequence call(XPathContext context, Sequence[] args) throws XPathException
      Invoke the function
      Parameters:
      context - the XPath dynamic evaluation context
      args - the actual arguments to be supplied
      Returns:
      the result of invoking the function
      Throws:
      XPathException - if a dynamic error occurs within the function