Class StyleSheetFunctionCall


  • public class StyleSheetFunctionCall
    extends Function
    This class represents a call to a function defined in the stylesheet
    • Constructor Detail

      • StyleSheetFunctionCall

        public StyleSheetFunctionCall()
    • Method Detail

      • setFunction

        public void setFunction​(SAXONFunction f)
        Create the reference to the saxon:function element
      • getName

        public java.lang.String getName()
        Get the name of the function.
        Specified by:
        getName in class Function
        Returns:
        the name of the function, as used in XSL expressions, but excluding its namespace prefix
      • getDataType

        public int getDataType()
        Determine the data type of the expression, if possible
        Specified by:
        getDataType in class Expression
        Returns:
        Value.ANY (meaning not known in advance)
      • getDependencies

        public int getDependencies()
        Determine which aspects of the context the expression depends on. The result is a bitwise-or'ed value composed from constants such as Context.VARIABLES and Context.CURRENT_NODE
        Specified by:
        getDependencies in class Expression
      • reduce

        public Expression reduce​(int dependencies,
                                 Context context)
                          throws XPathException
        Remove dependencies.
        Specified by:
        reduce in class Expression
        Parameters:
        dependencies - The dependencies to be removed, e.g. Context.VARIABLES
        context - The context to be used for the partial evaluation
        Returns:
        a new expression (or Value) that does not have any of the specified dependencies
        Throws:
        XPathException
      • evaluate

        public Value evaluate​(Context c)
                       throws XPathException
        Evaluate the function
        Specified by:
        evaluate in class Expression
        Parameters:
        context - The context in which the function is to be evaluated
        Returns:
        a Value representing the result of the function. This must be of the data type corresponding to the result of getType().
        Throws:
        XPathException - if the function cannot be evaluated.