com.novell.xml.xpath.functions
Class xpathLang

java.lang.Object
  com.novell.xml.xpath.Function
      com.novell.xml.xpath.functions.xpathLang

public class xpathLang

extends Function

This class implements the XPath lang(string) built-in function

Constructor Summary

xpathLang()
Construct an object for the lang() function

Method Summary

ExpressionValue

invoke(Object[] args) Perform lang() function

Methods inherited from class com.novell.xml.xpath.Function

getInstance, getSignature, isConstant, registerForReset

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

xpathLang

public xpathLang()

Construct an object for the lang() function

Method Detail

invoke

public ExpressionValue invoke(Object[] args)
                       throws XPathEvaluationException

Perform lang() function

Overrides:

invoke in class Function

Parameters:

args - List of arguments. Three arguments: args[0] = context node args[1] = expression context args[2] = string

Returns:

true or false, depending on whther the language of the context node as specified by xml:lang is the same as or is a sublanguage of the language specified by the argument string

Throws:

XPathEvaluationException