com.novell.xml.xpath.functions
Class xpathBoolean

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

public class xpathBoolean

extends Function

This class implements the XPath boolean(object?) built-in function

Constructor Summary

xpathBoolean()
Construct an object for the boolean() function

Method Summary

ExpressionValue	invoke(Object[] args) Perform boolean() 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

xpathBoolean

public xpathBoolean()

Construct an object for the boolean() function

Method Detail

invoke

public ExpressionValue invoke(Object[] args)
                       throws XPathEvaluationException

Perform boolean() function

Overrides:

invoke in class Function

Parameters:

args - List of arguments. First first argument must be the context node. The second argument must be the expression context object The third argument may not exist, or it may be an expression value

Returns:

The boolean value of the argument - the current context node (if no third parm) or the converted expression value

Throws:

XPathEvaluationException

toString

public String toString()

Return function name.

Returns:

Function name.