Class CopyOfFn

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

public class CopyOfFn extends SystemFunction
XSLT 3.0 function copy-of(). This compiles into an xsl:copy-of instruction, except when called dynamically.
  • Constructor Details

    • CopyOfFn

      public CopyOfFn()
  • Method Details

    • getCardinality

      public int getCardinality(Expression[] arguments)
      Description copied from class: SystemFunction
      Get the cardinality, given knowledge of the actual arguments
      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 (used only for dynamic calls)
      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
    • 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