com.novell.xml.xpath.functions
Class xpathString

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

public class xpathString

extends Function

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

Constructor Summary

xpathString()
Construct an object for the string() function

Method Summary

ExpressionValue	invoke(Object[] args) Perform string() function
StringValue	string(Node contextNode, ExpressionContext context, Object[] args) Perform string() 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

xpathString

public xpathString()

Construct an object for the string() function

Method Detail

invoke

public ExpressionValue invoke(Object[] args)
                       throws XPathEvaluationException

Perform string() 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:

A string value containing the conversion or either the current context node (if no third parm) or the converted expression value

Throws:

XPathEvaluationException

string

public StringValue string(Node contextNode,
                          ExpressionContext context,
                          Object[] args)

Perform string() function

Parameters:

contextNode - context node for expression

context - expression context for expression

args - additional arguments

toString

public String toString()

Return function name.

Returns:

Function name.