public interface XPathFunction

Since:

1.5

• Method Summary

  All Methods

  Modifier and Type	Method	Description
  Object	evaluate (List args)	Evaluate the function with the specified arguments.

• Method Detail

  • evaluate

    Object evaluate(List args)
     throws XPathFunctionException 

    Evaluate the function with the specified arguments.

    To the greatest extent possible, side-effects should be avoided in the definition of extension functions. The implementation evaluating an XPath expression is under no obligation to call extension functions in any particular order or any particular number of times.

    Parameters:

    args - The arguments, null is a valid value.

    Returns:

    The result of evaluating the XPath function as an Object.

    Throws:

    XPathFunctionException - If args cannot be evaluated with this XPath function.