com.novell.xml.xpath.functions
Class xpathSubstringBefore

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

public class xpathSubstringBefore

extends Function

This class implements the XPath substring-before(string,string) built-in function

Constructor Summary

xpathSubstringBefore()
Construct an object for the substring-before() function

Method Summary

ExpressionValue	invoke(Object[] args) Perform substring-before() function
String	toString() Return function name.

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, wait, wait, wait

Constructor Detail

xpathSubstringBefore

public xpathSubstringBefore()

Construct an object for the substring-before() function

Method Detail

invoke

public ExpressionValue invoke(Object[] args)
                       throws XPathEvaluationException

Perform substring-before() function

Overrides:

invoke in class Function

Parameters:

args - List of arguments. Two string arguments are required.

Returns:

The substring of the first argument string that precedes the first occurrence of the second argument string in the first argument string, or the empty string if the first argument string does not contain the second argument string.

Throws:

XPathEvaluationException

toString

public String toString()

Return function name.

Returns:

Function name.