org.exolab.adaptx.xpath.functions
Class StringFunctionCall

java.lang.Object
  extended by org.exolab.adaptx.xpath.expressions.PrimaryExpr
      extended by org.exolab.adaptx.xpath.expressions.FunctionCall
          extended by org.exolab.adaptx.xpath.functions.FunctionCallImpl
              extended by org.exolab.adaptx.xpath.functions.StringFunctionCall
All Implemented Interfaces:
Parameters, XPathExpression

public class StringFunctionCall
extends FunctionCallImpl

A implementation of the "string()" function call

Version:
$Revision: 4093 $
Author:
Keith Visco

Field Summary
 
Fields inherited from class org.exolab.adaptx.xpath.functions.FunctionCallImpl
INVALID_NUMBER_PARAMS, INVALID_RESULT
 
Fields inherited from class org.exolab.adaptx.xpath.expressions.PrimaryExpr
EXPR, FUNCTION_CALL, LITERAL, NUMBER, VARIABLE_REFERENCE
 
Fields inherited from interface org.exolab.adaptx.xpath.XPathExpression
BOOLEAN, ERROR, FILTER_EXPR, LOCATION_PATH, NODE_TEST, PATH_EXPR, PRIMARY, STEP, STRING, UNION_EXPR
 
Constructor Summary
StringFunctionCall()
          Creates a new String FunctionCall
 
Method Summary
 XPathResult evaluate(XPathContext context)
          Evaluates the expression and returns the XPath result.
 
Methods inherited from class org.exolab.adaptx.xpath.functions.FunctionCallImpl
addParameter, getFunctionName, getParameter, getParameterCount, toString
 
Methods inherited from class org.exolab.adaptx.xpath.expressions.PrimaryExpr
getExprType, getType
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

StringFunctionCall

public StringFunctionCall()
Creates a new String FunctionCall

Method Detail

evaluate

public XPathResult evaluate(XPathContext context)
                     throws XPathException
Evaluates the expression and returns the XPath result.

Parameters:
context - The XPathContext to use during evaluation.
Returns:
The XPathResult (not null).
Throws:
XPathException - if an error occured while evaluating this expression.